Q: What are the prime factors of the number 1,031,616?

 A: 2, 3, 199

Why are those the prime factors of the number 1,031,616?

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 1,031,616

1,031,616
Factor Arrows
2515,808
Factor Arrows
2257,904
Factor Arrows
2128,952
Factor Arrows
264,476
Factor Arrows
232,238
Factor Arrows
216,119
Factor Arrows
35,373
Factor Arrows
31,791
Factor Arrows
3597
Factor Arrows
3199

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, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 199 = 1,031,616

This can also be written as 26 x 34 x 1991 = 1,031,616

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


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