Q: What are the prime factors of the number 31,526,446?

 A: 2, 7, 103, 21863

Why are those the prime factors of the number 31,526,446?

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 31,526,446

31,526,446
Factor Arrows
215,763,223
Factor Arrows
72,251,889
Factor Arrows
10321,863

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, 7, 103, 21863

We can check our work by multiplying all of the prime factors together: 2 x 7 x 103 x 21,863 = 31,526,446

This can also be written as 21 x 71 x 1031 x 21,8631 = 31,526,446

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


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