Q: What are the prime factors of the number 108,861,925?

 A: 5, 19, 31, 7393

Why are those the prime factors of the number 108,861,925?

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 108,861,925

108,861,925
Factor Arrows
521,772,385
Factor Arrows
54,354,477
Factor Arrows
19229,183
Factor Arrows
317,393

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:

5, 19, 31, 7393

We can check our work by multiplying all of the prime factors together: 5 x 5 x 19 x 31 x 7,393 = 108,861,925

This can also be written as 52 x 191 x 311 x 7,3931 = 108,861,925

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


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