Q: What are the prime factors of the number 38,302,740?

 A: 2, 3, 5, 7, 10133

Why are those the prime factors of the number 38,302,740?

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 38,302,740

38,302,740
Factor Arrows
219,151,370
Factor Arrows
29,575,685
Factor Arrows
33,191,895
Factor Arrows
31,063,965
Factor Arrows
3354,655
Factor Arrows
570,931
Factor Arrows
710,133

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, 7, 10133

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 7 x 10,133 = 38,302,740

This can also be written as 22 x 33 x 51 x 71 x 10,1331 = 38,302,740

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


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