Q: What are the prime factors of the number 72,316,232?

 A: 2, 17, 23, 61, 379

Why are those the prime factors of the number 72,316,232?

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 72,316,232

72,316,232
Factor Arrows
236,158,116
Factor Arrows
218,079,058
Factor Arrows
29,039,529
Factor Arrows
17531,737
Factor Arrows
2323,119
Factor Arrows
61379

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, 17, 23, 61, 379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 17 x 23 x 61 x 379 = 72,316,232

This can also be written as 23 x 171 x 231 x 611 x 3791 = 72,316,232

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


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