Q: What are the prime factors of the number 73,730,736?

 A: 2, 3, 56891

Why are those the prime factors of the number 73,730,736?

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 73,730,736

73,730,736
Factor Arrows
236,865,368
Factor Arrows
218,432,684
Factor Arrows
29,216,342
Factor Arrows
24,608,171
Factor Arrows
31,536,057
Factor Arrows
3512,019
Factor Arrows
3170,673
Factor Arrows
356,891

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, 56891

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 56,891 = 73,730,736

This can also be written as 24 x 34 x 56,8911 = 73,730,736

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


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