Q: What are the prime factors of the number 37,513,440?

 A: 2, 3, 5, 109, 239

Why are those the prime factors of the number 37,513,440?

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 37,513,440

37,513,440
Factor Arrows
218,756,720
Factor Arrows
29,378,360
Factor Arrows
24,689,180
Factor Arrows
22,344,590
Factor Arrows
21,172,295
Factor Arrows
3390,765
Factor Arrows
3130,255
Factor Arrows
526,051
Factor Arrows
109239

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, 109, 239

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 5 x 109 x 239 = 37,513,440

This can also be written as 25 x 32 x 51 x 1091 x 2391 = 37,513,440

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


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