Q: What are the prime factors of the number 455,872?

 A: 2, 17, 419

Why are those the prime factors of the number 455,872?

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 455,872

455,872
Factor Arrows
2227,936
Factor Arrows
2113,968
Factor Arrows
256,984
Factor Arrows
228,492
Factor Arrows
214,246
Factor Arrows
27,123
Factor Arrows
17419

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, 419

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 17 x 419 = 455,872

This can also be written as 26 x 171 x 4191 = 455,872

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


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