Q: What are the prime factors of the number 37,686,915?

 A: 3, 5, 7, 181, 661

Why are those the prime factors of the number 37,686,915?

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 37,686,915

37,686,915
Factor Arrows
312,562,305
Factor Arrows
34,187,435
Factor Arrows
5837,487
Factor Arrows
7119,641
Factor Arrows
181661

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:

3, 5, 7, 181, 661

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 181 x 661 = 37,686,915

This can also be written as 32 x 51 x 71 x 1811 x 6611 = 37,686,915

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


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