Q: What are the prime factors of the number 108,121,824?

 A: 2, 3, 125141

Why are those the prime factors of the number 108,121,824?

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 108,121,824

108,121,824
Factor Arrows
254,060,912
Factor Arrows
227,030,456
Factor Arrows
213,515,228
Factor Arrows
26,757,614
Factor Arrows
23,378,807
Factor Arrows
31,126,269
Factor Arrows
3375,423
Factor Arrows
3125,141

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, 125141

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 3 x 3 x 125,141 = 108,121,824

This can also be written as 25 x 33 x 125,1411 = 108,121,824

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


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