Q: What are the prime factors of the number 242,165,056?

 A: 2, 7, 31, 47, 53

Why are those the prime factors of the number 242,165,056?

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 242,165,056

242,165,056
Factor Arrows
2121,082,528
Factor Arrows
260,541,264
Factor Arrows
230,270,632
Factor Arrows
215,135,316
Factor Arrows
27,567,658
Factor Arrows
23,783,829
Factor Arrows
7540,547
Factor Arrows
777,221
Factor Arrows
312,491
Factor Arrows
4753

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, 7, 31, 47, 53

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 7 x 7 x 31 x 47 x 53 = 242,165,056

This can also be written as 26 x 72 x 311 x 471 x 531 = 242,165,056

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


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