Q: What are the prime factors of the number 117,381,236?

 A: 2, 7, 23, 113, 1613

Why are those the prime factors of the number 117,381,236?

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 117,381,236

117,381,236
Factor Arrows
258,690,618
Factor Arrows
229,345,309
Factor Arrows
74,192,187
Factor Arrows
23182,269
Factor Arrows
1131,613

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, 7, 23, 113, 1613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 23 x 113 x 1,613 = 117,381,236

This can also be written as 22 x 71 x 231 x 1131 x 1,6131 = 117,381,236

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


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