Q: What are the prime factors of the number 108,141,568?

 A: 2, 105607

Why are those the prime factors of the number 108,141,568?

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 108,141,568

108,141,568
Factor Arrows
254,070,784
Factor Arrows
227,035,392
Factor Arrows
213,517,696
Factor Arrows
26,758,848
Factor Arrows
23,379,424
Factor Arrows
21,689,712
Factor Arrows
2844,856
Factor Arrows
2422,428
Factor Arrows
2211,214
Factor Arrows
2105,607

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, 105607

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 2 x 2 x 105,607 = 108,141,568

This can also be written as 210 x 105,6071 = 108,141,568

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


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