Q: What are the prime factors of the number 17,289,780?

 A: 2, 3, 5, 127, 2269

Why are those the prime factors of the number 17,289,780?

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 17,289,780

17,289,780
Factor Arrows
28,644,890
Factor Arrows
24,322,445
Factor Arrows
31,440,815
Factor Arrows
5288,163
Factor Arrows
1272,269

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, 5, 127, 2269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 127 x 2,269 = 17,289,780

This can also be written as 22 x 31 x 51 x 1271 x 2,2691 = 17,289,780

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


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