Q: What are the prime factors of the number 456,490?

 A: 2, 5, 191, 239

Why are those the prime factors of the number 456,490?

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 456,490

456,490
Factor Arrows
2228,245
Factor Arrows
545,649
Factor Arrows
191239

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, 5, 191, 239

We can check our work by multiplying all of the prime factors together: 2 x 5 x 191 x 239 = 456,490

This can also be written as 21 x 51 x 1911 x 2391 = 456,490

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


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