Q: What are the prime factors of the number 37,868,672?

 A: 2, 19, 23, 677

Why are those the prime factors of the number 37,868,672?

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 37,868,672

37,868,672
Factor Arrows
218,934,336
Factor Arrows
29,467,168
Factor Arrows
24,733,584
Factor Arrows
22,366,792
Factor Arrows
21,183,396
Factor Arrows
2591,698
Factor Arrows
2295,849
Factor Arrows
1915,571
Factor Arrows
23677

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, 19, 23, 677

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19 x 23 x 677 = 37,868,672

This can also be written as 27 x 191 x 231 x 6771 = 37,868,672

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


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