Q: What are the prime factors of the number 451,332?

 A: 2, 3, 7, 199

Why are those the prime factors of the number 451,332?

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 451,332

451,332
Factor Arrows
2225,666
Factor Arrows
2112,833
Factor Arrows
337,611
Factor Arrows
312,537
Factor Arrows
34,179
Factor Arrows
31,393
Factor Arrows
7199

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, 3, 7, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 7 x 199 = 451,332

This can also be written as 22 x 34 x 71 x 1991 = 451,332

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


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