Q: What are the prime factors of the number 72,586,188?

 A: 2, 3, 29, 251, 277

Why are those the prime factors of the number 72,586,188?

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 72,586,188

72,586,188
Factor Arrows
236,293,094
Factor Arrows
218,146,547
Factor Arrows
36,048,849
Factor Arrows
32,016,283
Factor Arrows
2969,527
Factor Arrows
251277

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, 29, 251, 277

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 29 x 251 x 277 = 72,586,188

This can also be written as 22 x 32 x 291 x 2511 x 2771 = 72,586,188

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


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