Q: What are the prime factors of the number 450,215,409?

 A: 3, 7, 23, 151, 6173

Why are those the prime factors of the number 450,215,409?

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 450,215,409

450,215,409
Factor Arrows
3150,071,803
Factor Arrows
721,438,829
Factor Arrows
23932,123
Factor Arrows
1516,173

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, 23, 151, 6173

We can check our work by multiplying all of the prime factors together: 3 x 7 x 23 x 151 x 6,173 = 450,215,409

This can also be written as 31 x 71 x 231 x 1511 x 6,1731 = 450,215,409

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


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