Q: What are the prime factors of the number 37,375,520?

 A: 2, 5, 7, 13, 17, 151

Why are those the prime factors of the number 37,375,520?

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 37,375,520

37,375,520
Factor Arrows
218,687,760
Factor Arrows
29,343,880
Factor Arrows
24,671,940
Factor Arrows
22,335,970
Factor Arrows
21,167,985
Factor Arrows
5233,597
Factor Arrows
733,371
Factor Arrows
132,567
Factor Arrows
17151

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, 5, 7, 13, 17, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 7 x 13 x 17 x 151 = 37,375,520

This can also be written as 25 x 51 x 71 x 131 x 171 x 1511 = 37,375,520

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


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