Q: What are the prime factors of the number 106,017,920?

 A: 2, 5, 165653

Why are those the prime factors of the number 106,017,920?

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 106,017,920

106,017,920
Factor Arrows
253,008,960
Factor Arrows
226,504,480
Factor Arrows
213,252,240
Factor Arrows
26,626,120
Factor Arrows
23,313,060
Factor Arrows
21,656,530
Factor Arrows
2828,265
Factor Arrows
5165,653

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, 165653

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 5 x 165,653 = 106,017,920

This can also be written as 27 x 51 x 165,6531 = 106,017,920

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


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