Q: What are the prime factors of the number 1,311,984?

 A: 2, 3, 3037

Why are those the prime factors of the number 1,311,984?

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 1,311,984

1,311,984
Factor Arrows
2655,992
Factor Arrows
2327,996
Factor Arrows
2163,998
Factor Arrows
281,999
Factor Arrows
327,333
Factor Arrows
39,111
Factor Arrows
33,037

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, 3037

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3,037 = 1,311,984

This can also be written as 24 x 33 x 3,0371 = 1,311,984

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


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