Q: What are the prime factors of the number 122,654,864?

 A: 2, 17, 59, 7643

Why are those the prime factors of the number 122,654,864?

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 122,654,864

122,654,864
Factor Arrows
261,327,432
Factor Arrows
230,663,716
Factor Arrows
215,331,858
Factor Arrows
27,665,929
Factor Arrows
17450,937
Factor Arrows
597,643

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, 59, 7643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 59 x 7,643 = 122,654,864

This can also be written as 24 x 171 x 591 x 7,6431 = 122,654,864

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


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