How many of the first million positive integers share no common factors greater than 1 with 2020

Answers

Answer 1

9514 1404 393

Answer:

  396,040

Step-by-step explanation:

Factors of 2020 are 2, 5, 101.

There are 1,000,000 / 1010 = 990 multiples of 2 and 5 and 101.

There are 1,000,000 / 505 -990 = 990 multiples of 5 and 101 only.

There are 1,000,000 / 202 -990 = 3,960 multiples of 2 and 101 only.

There are 1,000,000 / 10 - 990 = 99,010 multiples of 2 and 5 only.

There are 1,000,000 / 101 -990 -990 -3960 = 3,960 multiples of 101 only.

There are 1,000,000 / 5 -990 -990 -99,010 = 99,010 multiples of 5 only.

There are 1,000,000 / 2 -990 -3960 -99,010 = 396,040 multiples of 2 only.

So, the total number of multiples of any factor of 2020 is ...

  990 +990 +3960 +99,010 +3960 +99010 +396040 = 603960

Then the number of integers in the first million that do not share any common factors greater than 1 with 2020 is ...

  1,000,000 -603,960 = 396,040


Related Questions

I'LL GIVE BRAINLIEST!!

Answers

Answer: 3

Step-by-step explanation:

1. 2²=4

2. 4*5=20

3. 180/20=9

4. √9=3

Hope this helped :)

Answer:

x = 3

Choice 2

Step-by-step explanation:

180 = 2^2 * x^2 * 5

180 = 20x^2

9 = x^2

x = 3

Checking:

180 = 2^2 * 8^2 * 5

180 = 4 * 9 * 5

180 = 36 * 5

180 = 180

anybody knows the best way to get rid of a migraine or to make it feel better
it k1lls so bad it's so painful. don't say got to the doctor's cuz there medicine doesn't rlly help

Answers

Answer:

The best way to help is to get some water or get some sleep.It is either because you didn't get enough sleep or that you are dehydrated.

Step-by-step explanation:

Answer:

Drink a soda the instant you feel one coming on- sugar and caffeine tend to help.

If you can, try a good chiropractor- they can do adjustments that help with so many things including splitting headaches.

Try an OTC medicine.

sleep, dark, quiet, calm- try not to think too much and stay hydrated. maybe try carbonated water.

try to massage your neck yourself. it could help.

try to use a cold or a hot compress on your head.

Bananas. A tried and true natural headache reliever, bananas have potassium, magnesium, B vitamins, and complex carbohydrates, all components that contribute to headache relief.

The taste and smell of green apples have shown to help dim or lessen the intensity of migraines.

Hot packs and heating pads can relax tense muscles. Warm showers or baths may have a similar effect. Drink a caffeinated beverage. In small amounts, caffeine alone can relieve migraine pain in the early stages or enhance the pain-reducing effects of acetaminophen (Tylenol, others) and aspirin.

Step-by-step explanation:

avoid blue light from screens.

PLEASE HELP ME............THANKS

Answers

Answer:

i think it's c, I could be wrong djxndnxmmx

Answer:

{2,4,9,16}

Step-by-step explanation:

Range are the y values, which are on the right.

what is the radius of x?​

Answers

Answer:

To get the radius, divide the diameter by 2.

Answer:

to get the radius you have to divided the diameter by 2

Step-by-step explanation:

PLEASEE HELPP ASAPP!!

Solve: -35/-7

A: 7
B: -7
C: 42
D: -42

Answers

Answer:

D.

Step-by-step explanation:

You see, this is simple division. Let's divide it.

-35/-7 = -42

_____________________

Don't let the other options confuse you. negative dividing is just the same as regular, just negative ^^


What is the value of 3-(-2)
A.-5
B.-1
C.1
D.5

Answers

Answer:

5

Step-by-step explanation:

3-(-2)=5

Two negatives are a positive. So 3-(-2)=3+2. And 3+2 is 5.

Answer:

0

Step-by-step explanation:

-5 + -1 = -6

5 + 1 = 6

-6- 6 = 0

The vertices of the triangle in the diagram below are A(7,9), B(3,3), and C(11,3).


What are the coordinates of the centroid of triangle ABC?

Please Answer with work shown! I know that the answer is (7,5) But can some one show the work for it?
If you answer it and show the work for me then I will give you the brainiest question reward!
Please Help!

Answers

Answer:

(7 , 5)

Step-by-step explanation:

Add all the x-axis then divide by 3

7 + 3 + 11 = 21

21/3 = 7

Add all the y-axis then divide by 3

9 + 3 + 3 = 15

15/3 = 5

So answer will be (7,5)

The coordinates of the centroid of triangle ABC.

(x, y)

Where,

x = Sum all the x-coordinates of the vertices ÷ 3

y = Sum o

The coordinates of the centroid is (7, 5).

What is a triangle?

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

The vertices of the triangle in the diagram below are:

A(7,9), B(3,3), and C(11,3).

Now,

The coordinates of the centroid of triangle ABC.

(x, y)

Where,

x = Sum all the x-coordinates of the vertices ÷ 3

y = Sum of the y-coordinates of the vertices ÷ 3

Now,

x = 7 + 3 + 11 / 3 = 21/3 = 7

y = 9 + 3 + 3 / 3 = 15/3 = 5

Now,

The coordinates of the centroid is (7, 5).

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

In a sample of 16 mini-golf balls, 6 are yellow and 10 are pink. If 2 balls are selected at random from the sample, one at a time without replacement, what is the probability that both balls are not pink?

Answers

Answer:

The probability is 1/8 that you'll pick 2 yellow balls.

Step-by-step explanation:

P(Both balls not pink) = P(Both balls yellow) = 6/16 * 5/15 = 1/8

Terrence swims 0.75 miles at the community pool before school each morning. Some days, he also goes to the pool in the afternoon and swims another 0.5 miles. If Terrence swam 5 mornings and 3 afternoons this week, how many total miles did he swim?

Answers

Answer:

5.25 miles

Step-by-step explanation:

0.75*5=3.75

0.5*3=1.5

3.75+1.5=5.25

NEED HELP!!! ASAP last minute homework

Answers

The error is the sign of Inequality.

For Inequality, when the variable has negative coefficient, moving to another side would cause the Inequality symbol/sign to swap.

Therefore, from x>=-3 as it should be x<=-3

please help!!!!



algebra 2​

Answers

Answer:

domain: x<2 or x>2

x-intercepts: (3/2, 0), (-3/2, 0)

im struggling :(((((((((((

Answers

Answer:

Step-by-step explanation:im sorry im only 11

Help plz i’ll give extra points f

Answers

Answer: First Option | 2 x 10^1

Reason: After doing 6.4 divided by 3.2, you get 2, and finally you subtract 10³ by 10². And after that subtraction, you get 10^1, Therefore the answer is the first option.

I hope this helps, and Happy Holidays! :)

Estimate the value of y when x =2.5
Both of them

Answers

Step-by-step explanation:

[tex]y = {2.5}^{2} - 2(2.5) - 3 [/tex]

-1.75

Here we need to learn how to read a graph.

In a normal graph we have the inputs (the values of x) in the horizontal axis and the outputs in the vertical axis.

Here we want to see what is the value of y for the blue graph when x = 2.5

We will find y = -1.5

(the blue graph is the one that corresponds to: y = x^2 - 2x - 3)

To find this:

The first thing we need to do is find x = 2.5 in the horizontal axis.

Now that we found it, we need to draw a vertical line, and see at which point of the blue graph this vertical line intersects the curve. At that point we draw an horizontal line that intercepts the vertical axis.

At that point we have the y-value

You can see an example of this, a good estimation by only looking at the graph is y = -1.5

For the other point, the value of x when y = 1.

We do exactly the same thing but in the inverse order, we first find y = 1

Then we draw an horizontal line that intercepts the graph

Then we draw a vertical line that intercepts the x-axis and we find the value.

We can see that for y = 1 we have x = 3.2 aprox.

If you want to learn more you can read:

https://brainly.com/question/16781210

i need the answer to this graph​

Answers

the answer is 15!.......

MY TEACHER IS IGNORING ME! PLEASE HELP 10 POINTS !

Mai biked 6 3/4 miles today, and Noah biked 4 1/2 miles. How many times the length of Noah’s bike ride was Mai’s bike ride?


Thanks in advance

Answers

Answer:

Tell ur teacher to stop ignoring you 23

Step-by-step explanation:

ur welcomw 32

Pleaseee I need help

Answers

Answer:

32

Step-by-step explanation:

2x-16 + 4x+4 =180

6x=180+12

6x=192

x=32

I hope this helps, have a good day

Can somebody plz help answer both questions correct (only if u know how)

WILL MARK BRAINLIEST WHOEVER ANSWERS THEM FIRST.. promise :DD

Answers

divide the fraction like 4/5 and I'll give you decimal form and you could tell which one was bigger very quickly

What is the value of log: 3 3

Answers

Answer:

1

Step-by-step explanation:

4(1-x)+2x=-3x+-3 I need helpppo

Answers

ANSWER= -7
BRAINLIEST please
Hello,

Answer is -7
Brainliest?

Mary Catherine makes 2 gallons of punch for her party. How many pints of punch did she make?

Answers

the answer is below :D hope u do good!

Step-by-step explanation:

answer is 32! trust me

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Answers

Step-by-step explanation:

4,6 and 8 are composite numbers

and 2 is an prime number

hope it helpful

Answer:

4 , 6 , & 8 are composite numbers

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Answers

Answer:

u = -10

Step-by-step explanation:

Hope this helps! I pray that you get it right and that I get brainliest plzzzz. Thanks!!

A bakery sells 5 muffins for every 6 cookies it sells. Complete the table to show the relationship between the number of muffins and cookies the bakery sells. Enter a number in each box

Answers

Answer:

24 cookies

25 muffins

96 cookies

I have the same question 73737 it’s not the answer I just need the answer for this

George invested $3,600 in an account for 3 years. After 3 years he had earned $540 in interest. What is the simple interest rate on his account?

Answers

Step-by-step explanation:

here's the answers...........

Find the oth term of the arithmetic sequence 16, 21, 26, ...

Answers

Answer:

31

Step-by-step explanation:

16+5=21

21+5=26

26+5=31

What are the domain and range of each relation?
Drag the answer into the box to match each relation.

Answers

Answer:

the second one fore the points

then the third one for the graph

Step-by-step explanation:

(-4,3), (-4,4), (-3,1), (1,1):

X: -4, -3, 1       Since theirs two -4s you only put one

Y: 1, 3, 4           since theirs two 1s you only put one

The graph:

(1,-1), (4,4), (-1,1), (-3,1), (-3,-4)

X: 1, 4, -1, -3

Y: -1, 4, 1, -4

Have a safe and happy new year :)

help asap I have 2 min

Answers

Number one I think I’m so sorry if I’m wrong !!
Hope this helped !

What is 80% of 80?!? Pls help ASAP

Answers

Answer:

64

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

80% * 80 = 64

Jeremy can type 220 words in 4 minutes. That means he can type how many words per minute?​

Answers

Answer:

55

Step-by-step explanation:

220 divided by 4, is 55.

Do 220/4

That will give you your answer for words per minute.

Have a nice day!!!
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