Q: What are the prime factors of the number 31,287,810?

 A: 2, 3, 5, 29, 35963

Why are those the prime factors of the number 31,287,810?

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 31,287,810

31,287,810
Factor Arrows
215,643,905
Factor Arrows
35,214,635
Factor Arrows
51,042,927
Factor Arrows
2935,963

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, 3, 5, 29, 35963

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 29 x 35,963 = 31,287,810

This can also be written as 21 x 31 x 51 x 291 x 35,9631 = 31,287,810

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


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