Q: What are the prime factors of the number 478,218,629?

 A: 7, 41, 53, 149, 211

Why are those the prime factors of the number 478,218,629?

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 478,218,629

478,218,629
Factor Arrows
768,316,947
Factor Arrows
411,666,267
Factor Arrows
5331,439
Factor Arrows
149211

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:

7, 41, 53, 149, 211

We can check our work by multiplying all of the prime factors together: 7 x 41 x 53 x 149 x 211 = 478,218,629

This can also be written as 71 x 411 x 531 x 1491 x 2111 = 478,218,629

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


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