Q: What are the prime factors of the number 37,970,226?

 A: 2, 3, 7, 31, 9721

Why are those the prime factors of the number 37,970,226?

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 37,970,226

37,970,226
Factor Arrows
218,985,113
Factor Arrows
36,328,371
Factor Arrows
32,109,457
Factor Arrows
7301,351
Factor Arrows
319,721

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, 7, 31, 9721

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 31 x 9,721 = 37,970,226

This can also be written as 21 x 32 x 71 x 311 x 9,7211 = 37,970,226

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


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