Factors of 640
Answer
Factors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
Number of factors: 16
Factor pairs: (1, 640), (2, 320), (4, 160), (5, 128), (8, 80), (10, 64), (16, 40), (20, 32)
Prime Factorization
640 = 27 × 5
Properties
- This number is not prime
- This number is not a perfect square
- This is an even number
- Sum of all factors: 1,530
Check Numbers from 1 to 640
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Understanding the Factors of 640
When we look at the number 640, we find that it has 16 factors in total. These are the numbers that divide evenly into 640 with no remainder.
This number is composite, meaning it has more than two factors. It can be written as the product of its prime factors: 27 × 5.
Factor Pairs
The factors of 640 can be arranged in pairs: (1, 640), (2, 320), (4, 160), (5, 128), (8, 80), (10, 64), (16, 40), (20, 32). Each pair multiplies to give 640.