Q: What are the prime factors of the number 31,772,581?

 A: 41, 461

Why are those the prime factors of the number 31,772,581?

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 31,772,581

31,772,581
Factor Arrows
41774,941
Factor Arrows
4118,901
Factor Arrows
41461

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:

41, 461

We can check our work by multiplying all of the prime factors together: 41 x 41 x 41 x 461 = 31,772,581

This can also be written as 413 x 4611 = 31,772,581

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


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