Q: What are the prime factors of the number 1,102,976?

 A: 2, 7, 1231

Why are those the prime factors of the number 1,102,976?

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 1,102,976

1,102,976
Factor Arrows
2551,488
Factor Arrows
2275,744
Factor Arrows
2137,872
Factor Arrows
268,936
Factor Arrows
234,468
Factor Arrows
217,234
Factor Arrows
28,617
Factor Arrows
71,231

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, 7, 1231

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 2 x 7 x 1,231 = 1,102,976

This can also be written as 27 x 71 x 1,2311 = 1,102,976

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


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