Q: What are the prime factors of the number 37,972,384?

 A: 2, 67, 89, 199

Why are those the prime factors of the number 37,972,384?

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 37,972,384

37,972,384
Factor Arrows
218,986,192
Factor Arrows
29,493,096
Factor Arrows
24,746,548
Factor Arrows
22,373,274
Factor Arrows
21,186,637
Factor Arrows
6717,711
Factor Arrows
89199

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, 67, 89, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 67 x 89 x 199 = 37,972,384

This can also be written as 25 x 671 x 891 x 1991 = 37,972,384

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


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