Q: What are the prime factors of the number 17,620,746?

 A: 2, 3, 11, 13, 1867

Why are those the prime factors of the number 17,620,746?

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 17,620,746

17,620,746
Factor Arrows
28,810,373
Factor Arrows
32,936,791
Factor Arrows
11266,981
Factor Arrows
1124,271
Factor Arrows
131,867

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, 11, 13, 1867

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 11 x 13 x 1,867 = 17,620,746

This can also be written as 21 x 31 x 112 x 131 x 1,8671 = 17,620,746

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


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