Q: What are the prime factors of the number 113,403,440?

 A: 2, 5, 1417543

Why are those the prime factors of the number 113,403,440?

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 113,403,440

113,403,440
Factor Arrows
256,701,720
Factor Arrows
228,350,860
Factor Arrows
214,175,430
Factor Arrows
27,087,715
Factor Arrows
51,417,543

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, 1417543

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 1,417,543 = 113,403,440

This can also be written as 24 x 51 x 1,417,5431 = 113,403,440

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


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