Q: What are the prime factors of the number 17,907,680?

 A: 2, 5, 7, 59, 271

Why are those the prime factors of the number 17,907,680?

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 17,907,680

17,907,680
Factor Arrows
28,953,840
Factor Arrows
24,476,920
Factor Arrows
22,238,460
Factor Arrows
21,119,230
Factor Arrows
2559,615
Factor Arrows
5111,923
Factor Arrows
715,989
Factor Arrows
59271

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, 5, 7, 59, 271

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 7 x 59 x 271 = 17,907,680

This can also be written as 25 x 51 x 71 x 591 x 2711 = 17,907,680

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


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