Q: What are the prime factors of the number 17,620,512?

 A: 2, 3, 7, 13, 2017

Why are those the prime factors of the number 17,620,512?

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 17,620,512

17,620,512
Factor Arrows
28,810,256
Factor Arrows
24,405,128
Factor Arrows
22,202,564
Factor Arrows
21,101,282
Factor Arrows
2550,641
Factor Arrows
3183,547
Factor Arrows
726,221
Factor Arrows
132,017

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, 7, 13, 2017

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 7 x 13 x 2,017 = 17,620,512

This can also be written as 25 x 31 x 71 x 131 x 2,0171 = 17,620,512

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


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