Q: What are the prime factors of the number 17,147,280?

 A: 2, 3, 5, 37, 1931

Why are those the prime factors of the number 17,147,280?

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 17,147,280

17,147,280
Factor Arrows
28,573,640
Factor Arrows
24,286,820
Factor Arrows
22,143,410
Factor Arrows
21,071,705
Factor Arrows
3357,235
Factor Arrows
571,447
Factor Arrows
371,931

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, 37, 1931

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 37 x 1,931 = 17,147,280

This can also be written as 24 x 31 x 51 x 371 x 1,9311 = 17,147,280

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


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