Q: What are the prime factors of the number 37,726,560?

 A: 2, 3, 5, 41, 71

Why are those the prime factors of the number 37,726,560?

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 37,726,560

37,726,560
Factor Arrows
218,863,280
Factor Arrows
29,431,640
Factor Arrows
24,715,820
Factor Arrows
22,357,910
Factor Arrows
21,178,955
Factor Arrows
3392,985
Factor Arrows
3130,995
Factor Arrows
343,665
Factor Arrows
314,555
Factor Arrows
52,911
Factor Arrows
4171

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, 41, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 41 x 71 = 37,726,560

This can also be written as 25 x 34 x 51 x 411 x 711 = 37,726,560

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


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