Q: What are the prime factors of the number 31,257,525?

 A: 3, 5, 13, 32059

Why are those the prime factors of the number 31,257,525?

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 31,257,525

31,257,525
Factor Arrows
310,419,175
Factor Arrows
52,083,835
Factor Arrows
5416,767
Factor Arrows
1332,059

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:

3, 5, 13, 32059

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 13 x 32,059 = 31,257,525

This can also be written as 31 x 52 x 131 x 32,0591 = 31,257,525

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


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