Factor Tree of 640

Given number is 640
The factor tree of 640 is as follows:

	640
2		320
	2		160
		2		80
			2		40
				2		20
					2		10
						2		5

640 = 2 x 320

320 = 2 x 160

160 = 2 x 80

80 = 2 x 40

40 = 2 x 20

20 = 2 x 10

10 = 2 x 5

If we write into multiples it would be 640 x 2

On splitting 320 further and writing it as multiples of numbers it would be 160 x 2.

On splitting 160 further and writing it as multiples of numbers it would be 80 x 2.

On splitting 80 further and writing it as multiples of numbers it would be 40 x 2.

On splitting 40 further and writing it as multiples of numbers it would be 20 x 2.

On splitting 20 further and writing it as multiples of numbers it would be 10 x 2.

On splitting 10 further and writing it as multiples of numbers it would be 5 x 2.

Here are examples of Factor tree calculations.

• Factor Tree of 645
• Factor Tree of 650
• Factor Tree of 655
• Factor Tree of 660
• Factor Tree of 665

Here we are providing different methods to find the factors of the number 640. They are splitting numbers and prime factors.

Splitting Numbers

We can divide the number into either of its two factors. In other words, we are looking for the numbers that when multiplied together eqaul 640. Let’s start with 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 as it results in 640 on multiplying. We will now find the factors or ancestors of split factors, just like in any family tree.

Prime Factors

Let’s take a look at 640 now and we can write as 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 and place those factors on the tree. similarly to prime numbers obtained in the first step 2, 2, 2, 2, 2, 2, 2, 5 obtained here are also prime numbers and we will end up these branches.

1. What is factor tree for 640 ?

Answer: Prime Factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5.

2. What are the Prime Factors of 640 ?

Answer: Prime Factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5.