Q: What are the prime factors of the number 1,331,232?

 A: 2, 3, 7, 283

Why are those the prime factors of the number 1,331,232?

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 1,331,232

1,331,232
Factor Arrows
2665,616
Factor Arrows
2332,808
Factor Arrows
2166,404
Factor Arrows
283,202
Factor Arrows
241,601
Factor Arrows
313,867
Factor Arrows
71,981
Factor Arrows
7283

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, 283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7 x 283 = 1,331,232

This can also be written as 25 x 31 x 72 x 2831 = 1,331,232

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


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