Q: What are the prime factors of the number 31,360,616?

 A: 2, 7, 103, 5437

Why are those the prime factors of the number 31,360,616?

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 31,360,616

31,360,616
Factor Arrows
215,680,308
Factor Arrows
27,840,154
Factor Arrows
23,920,077
Factor Arrows
7560,011
Factor Arrows
1035,437

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, 5437

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 103 x 5,437 = 31,360,616

This can also be written as 23 x 71 x 1031 x 5,4371 = 31,360,616

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


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