# What are all the factors, the prime factorization, and factor pairs of 640000?

To find the factors of 640000, divide 640000 by each number starting with 1 and working up to 640000

## What is a factor in math ?

Factors are the numbers you multiply together to get another number. For example, the factors of 15 are 3 and 5 because 3 × 5 = 15.

The factors of a number can be positive or negative, but they cannot be zero.

The factors of a number can be used to find out if the number is prime or not.

A prime number is a number that has only two factors: itself and 1. For example, the number 7 is prime because its only factors are 7 and 1.

## List all of the factors of 640000 ?

To calculate the factors of 640000 , you can use the division method.

1. Begin by dividing 640000 by the smallest possible number, which is 2.

2. If the division is even, then 2 is a factor of 640000.

3. Continue dividing 640000 by larger numbers until you find an odd number that does not divide evenly into 640000 .

4. The numbers that divide evenly into 640000 are the factors of 640000 .

Now let us find how to calculate all the factors of Six hundred forty thousand :

640000 ÷ 1 = 640000
640000 ÷ 2 = 320000
640000 ÷ 4 = 160000
640000 ÷ 5 = 128000
640000 ÷ 8 = 80000
640000 ÷ 10 = 64000
640000 ÷ 16 = 40000
640000 ÷ 20 = 32000
640000 ÷ 25 = 25600
640000 ÷ 32 = 20000
640000 ÷ 40 = 16000
640000 ÷ 50 = 12800
640000 ÷ 64 = 10000
640000 ÷ 80 = 8000
640000 ÷ 100 = 6400
640000 ÷ 125 = 5120
640000 ÷ 128 = 5000
640000 ÷ 160 = 4000
640000 ÷ 200 = 3200
640000 ÷ 250 = 2560
640000 ÷ 256 = 2500
640000 ÷ 320 = 2000
640000 ÷ 400 = 1600
640000 ÷ 500 = 1280
640000 ÷ 512 = 1250
640000 ÷ 625 = 1024
640000 ÷ 640 = 1000
640000 ÷ 800 = 800
640000 ÷ 1000 = 640
640000 ÷ 1024 = 625
640000 ÷ 1250 = 512
640000 ÷ 1280 = 500
640000 ÷ 1600 = 400
640000 ÷ 2000 = 320
640000 ÷ 2500 = 256
640000 ÷ 2560 = 250
640000 ÷ 3200 = 200
640000 ÷ 4000 = 160
640000 ÷ 5000 = 128
640000 ÷ 5120 = 125
640000 ÷ 6400 = 100
640000 ÷ 8000 = 80
640000 ÷ 10000 = 64
640000 ÷ 12800 = 50
640000 ÷ 16000 = 40
640000 ÷ 20000 = 32
640000 ÷ 25600 = 25
640000 ÷ 32000 = 20
640000 ÷ 40000 = 16
640000 ÷ 64000 = 10
640000 ÷ 80000 = 8
640000 ÷ 128000 = 5
640000 ÷ 160000 = 4
640000 ÷ 320000 = 2
640000 ÷ 640000 = 1

As you can see, the factors of 640000 are 1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 25 , 32 , 40 , 50 , 64 , 80 , 100 , 125 , 128 , 160 , 200 , 250 , 256 , 320 , 400 , 500 , 512 , 625 , 640 , 800 , 1000 , 1024 , 1250 , 1280 , 1600 , 2000 , 2500 , 2560 , 3200 , 4000 , 5000 , 5120 , 6400 , 8000 , 10000 , 12800 , 16000 , 20000 , 25600 , 32000 , 40000 , 64000 , 80000 , 128000 , 160000 , 320000 and 640000 .

## How many factors of 640000 are there ?

The factors of 640000 are the numbers that can evenly divide 640000 . These numbers are 1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 25 , 32 , 40 , 50 , 64 , 80 , 100 , 125 , 128 , 160 , 200 , 250 , 256 , 320 , 400 , 500 , 512 , 625 , 640 , 800 , 1000 , 1024 , 1250 , 1280 , 1600 , 2000 , 2500 , 2560 , 3200 , 4000 , 5000 , 5120 , 6400 , 8000 , 10000 , 12800 , 16000 , 20000 , 25600 , 32000 , 40000 , 64000 , 80000 , 128000 , 160000 , 320000 and 640000.

Thus, there are a total of 55 factors of 640000

## What are the factor pairs of 640000 ?

Factor Pairs of 640000 are combinations of two factors that when multiplied together equal 640000. There are many ways to calculate the factor pairs of 640000 .

One easy way is to list out the factors of 640000 :
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 25 , 32 , 40 , 50 , 64 , 80 , 100 , 125 , 128 , 160 , 200 , 250 , 256 , 320 , 400 , 500 , 512 , 625 , 640 , 800 , 1000 , 1024 , 1250 , 1280 , 1600 , 2000 , 2500 , 2560 , 3200 , 4000 , 5000 , 5120 , 6400 , 8000 , 10000 , 12800 , 16000 , 20000 , 25600 , 32000 , 40000 , 64000 , 80000 , 128000 , 160000 , 320000 , 640000

Then, pair up the factors:
(1,640000),(2,320000),(4,160000),(5,128000),(8,80000),(10,64000),(16,40000),(20,32000),(25,25600),(32,20000),(40,16000),(50,12800),(64,10000),(80,8000),(100,6400),(125,5120),(128,5000),(160,4000),(200,3200),(250,2560),(256,2500),(320,2000),(400,1600),(500,1280),(512,1250),(625,1024),(640,1000) and (800,800) These are the factor pairs of 640000 .

## Prime Factorisation of 640000

There are a few different methods that can be used to calculate the prime factorization of a number. Two of the most common methods are listed below.

1) Use a factor tree :

1. Take the number you want to find the prime factorization of and write it at the top of the page

2. Find the smallest number that goes into the number you are finding the prime factorization of evenly and write it next to the number you are finding the prime factorization of

3. Draw a line under the number you just wrote and the number you are finding the prime factorization of

4. Repeat step 2 with the number you just wrote until that number can no longer be divided evenly

5. The numbers written on the lines will be the prime factors of the number you started with

For example, to calculate the prime factorization of 640000 using a factor tree, we would start by writing 640000 on a piece of paper. Then, we would draw a line under it and begin finding factors.

The final prime factorization of 640000 would be 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5.

2) Use a factorization method :

There are a few different factorization methods that can be used to calculate the prime factorization of a number.

One common method is to start by dividing the number by the smallest prime number that will divide evenly into it.

Then, continue dividing the number by successively larger prime numbers until the number has been fully factorised.

For example, to calculate the prime factorization of 640000 using this method, we keep dividing until it gives a non-zero remainder.

640000 ÷ 2 = 320000
320000 ÷ 2 = 160000
160000 ÷ 2 = 80000
80000 ÷ 2 = 40000
40000 ÷ 2 = 20000
20000 ÷ 2 = 10000
10000 ÷ 2 = 5000
5000 ÷ 2 = 2500
2500 ÷ 2 = 1250
1250 ÷ 2 = 625
625 ÷ 5 = 125
125 ÷ 5 = 25
25 ÷ 5 = 5
5 ÷ 5 = 1

So the prime factors of 640000 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5.

## Frequently Asked Questions on Factors

### What are all the factors of 640000 ?

The factors of 640000 are 1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 25 , 32 , 40 , 50 , 64 , 80 , 100 , 125 , 128 , 160 , 200 , 250 , 256 , 320 , 400 , 500 , 512 , 625 , 640 , 800 , 1000 , 1024 , 1250 , 1280 , 1600 , 2000 , 2500 , 2560 , 3200 , 4000 , 5000 , 5120 , 6400 , 8000 , 10000 , 12800 , 16000 , 20000 , 25600 , 32000 , 40000 , 64000 , 80000 , 128000 , 160000 , 320000 and 640000.

### What is the prime factorization of 640000 ?

The prime factorization of 640000 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 or 210 x 54, where 2 , 5 are the prime numbers .

### What are the prime factors of 640000 ?

The prime factors of 640000 are 2 , 5 .

### Is 640000 a prime number ?

A prime number is a number that has only two factors 1 and itself.
640000 it is not a prime number because it has the factors 1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 25 , 32 , 40 , 50 , 64 , 80 , 100 , 125 , 128 , 160 , 200 , 250 , 256 , 320 , 400 , 500 , 512 , 625 , 640 , 800 , 1000 , 1024 , 1250 , 1280 , 1600 , 2000 , 2500 , 2560 , 3200 , 4000 , 5000 , 5120 , 6400 , 8000 , 10000 , 12800 , 16000 , 20000 , 25600 , 32000 , 40000 , 64000 , 80000 , 128000 , 160000 , 320000 and 640000.