Prime factorization of 640

How to find factors of 640 by Division Method?

To find the factors of 640 by division method, we need the find the all numbers between 1 to 640, which divide 640 with 0 remainder, then the number is factor of 640.

Pair factors of 640

• 640/1 = 640 [ 1 × 640 (1, 640) 1 and 640 is pair factor of 640]
• 640/2 = 320 [ 2 × 320 (2, 320) 2 and 320 is pair factor of 640]
• 640/4 = 160 [ 4 × 160 (4, 160) 4 and 160 is pair factor of 640]
• 640/5 = 128 [ 5 × 128 (5, 128) 5 and 128 is pair factor of 640]
• 640/8 = 80 [ 8 × 80 (8, 80) 8 and 80 is pair factor of 640]
• 640/10 = 64 [ 10 × 64 (10, 64) 10 and 64 is pair factor of 640]
• 640/16 = 40 [ 16 × 40 (16, 40) 16 and 40 is pair factor of 640]
• 640/20 = 32 [ 20 × 32 (20, 32) 20 and 32 is pair factor of 640]
• 640/32 = 20 [ 32 × 20 (32, 20) 32 and 20 is pair factor of 640]
• 640/40 = 16 [ 40 × 16 (40, 16) 40 and 16 is pair factor of 640]
• 640/64 = 10 [ 64 × 10 (64, 10) 64 and 10 is pair factor of 640]
• 640/80 = 8 [ 80 × 8 (80, 8) 80 and 8 is pair factor of 640]
• 640/128 = 5 [ 128 × 5 (128, 5) 128 and 5 is pair factor of 640]
• 640/160 = 4 [ 160 × 4 (160, 4) 160 and 4 is pair factor of 640]
• 640/320 = 2 [ 320 × 2 (320, 2) 320 and 2 is pair factor of 640]
• 640/640 = 1 [ 640 × 1 (640, 1) 640 and 1 is pair factor of 640]

As we checked numbers between 1 to 640 that are not leaving any remainder, hence we can say factors of 640 is 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640.

Also note that, in exponential form prime factorization of 640 is written as 2⁷ × 5¹ and it is a composite number.

We hope you understand that how to find factors of 640. Let's check some other examples of factors.