Q: What are the prime factors of the number 37,709,516?

 A: 2, 13, 31, 149, 157

Why are those the prime factors of the number 37,709,516?

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 37,709,516

37,709,516
Factor Arrows
218,854,758
Factor Arrows
29,427,379
Factor Arrows
13725,183
Factor Arrows
3123,393
Factor Arrows
149157

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, 13, 31, 149, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 13 x 31 x 149 x 157 = 37,709,516

This can also be written as 22 x 131 x 311 x 1491 x 1571 = 37,709,516

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


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