Q: What are the prime factors of the number 17,173,760?

 A: 2, 5, 13417

Why are those the prime factors of the number 17,173,760?

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 17,173,760

17,173,760
Factor Arrows
28,586,880
Factor Arrows
24,293,440
Factor Arrows
22,146,720
Factor Arrows
21,073,360
Factor Arrows
2536,680
Factor Arrows
2268,340
Factor Arrows
2134,170
Factor Arrows
267,085
Factor Arrows
513,417

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, 13417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 13,417 = 17,173,760

This can also be written as 28 x 51 x 13,4171 = 17,173,760

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


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