Q: What are the prime factors of the number 1,120,776?

 A: 2, 3, 17, 41, 67

Why are those the prime factors of the number 1,120,776?

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 1,120,776

1,120,776
Factor Arrows
2560,388
Factor Arrows
2280,194
Factor Arrows
2140,097
Factor Arrows
346,699
Factor Arrows
172,747
Factor Arrows
4167

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, 17, 41, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 41 x 67 = 1,120,776

This can also be written as 23 x 31 x 171 x 411 x 671 = 1,120,776

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


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