Q: What are the prime factors of the number 122,465,664?

 A: 2, 3, 106307

Why are those the prime factors of the number 122,465,664?

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 122,465,664

122,465,664
Factor Arrows
261,232,832
Factor Arrows
230,616,416
Factor Arrows
215,308,208
Factor Arrows
27,654,104
Factor Arrows
23,827,052
Factor Arrows
21,913,526
Factor Arrows
2956,763
Factor Arrows
3318,921
Factor Arrows
3106,307

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, 106307

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 2 x 3 x 3 x 106,307 = 122,465,664

This can also be written as 27 x 32 x 106,3071 = 122,465,664

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


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