Q: What are the prime factors of the number 478,163,301?

 A: 3, 7, 11, 17, 121763

Why are those the prime factors of the number 478,163,301?

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 478,163,301

478,163,301
Factor Arrows
3159,387,767
Factor Arrows
722,769,681
Factor Arrows
112,069,971
Factor Arrows
17121,763

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:

3, 7, 11, 17, 121763

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 17 x 121,763 = 478,163,301

This can also be written as 31 x 71 x 111 x 171 x 121,7631 = 478,163,301

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


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