Q: What are the prime factors of the number 109,757,600?

 A: 2, 5, 137197

Why are those the prime factors of the number 109,757,600?

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 109,757,600

109,757,600
Factor Arrows
254,878,800
Factor Arrows
227,439,400
Factor Arrows
213,719,700
Factor Arrows
26,859,850
Factor Arrows
23,429,925
Factor Arrows
5685,985
Factor Arrows
5137,197

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, 137197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 137,197 = 109,757,600

This can also be written as 25 x 52 x 137,1971 = 109,757,600

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


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