Q: What are the prime factors of the number 625,760?

 A: 2, 5, 3911

Why are those the prime factors of the number 625,760?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 625,760

625,760
Factor Arrows
2312,880
Factor Arrows
2156,440
Factor Arrows
278,220
Factor Arrows
239,110
Factor Arrows
219,555
Factor Arrows
53,911

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 3911

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 3,911 = 625,760

This can also be written as 25 x 51 x 3,9111 = 625,760

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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