Q: What are the prime factors of the number 17,610,720?

 A: 2, 3, 5, 19, 1931

Why are those the prime factors of the number 17,610,720?

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 17,610,720

17,610,720
Factor Arrows
28,805,360
Factor Arrows
24,402,680
Factor Arrows
22,201,340
Factor Arrows
21,100,670
Factor Arrows
2550,335
Factor Arrows
3183,445
Factor Arrows
536,689
Factor Arrows
191,931

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, 19, 1931

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 19 x 1,931 = 17,610,720

This can also be written as 25 x 31 x 51 x 191 x 1,9311 = 17,610,720

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


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