Q: What are the prime factors of the number 117,346,780?

 A: 2, 5, 31, 47, 4027

Why are those the prime factors of the number 117,346,780?

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 117,346,780

117,346,780
Factor Arrows
258,673,390
Factor Arrows
229,336,695
Factor Arrows
55,867,339
Factor Arrows
31189,269
Factor Arrows
474,027

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, 31, 47, 4027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 31 x 47 x 4,027 = 117,346,780

This can also be written as 22 x 51 x 311 x 471 x 4,0271 = 117,346,780

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


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