Q: What are the prime factors of the number 157,431,114?

 A: 2, 3, 761, 1277

Why are those the prime factors of the number 157,431,114?

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 157,431,114

157,431,114
Factor Arrows
278,715,557
Factor Arrows
326,238,519
Factor Arrows
38,746,173
Factor Arrows
32,915,391
Factor Arrows
3971,797
Factor Arrows
7611,277

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, 3, 761, 1277

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 761 x 1,277 = 157,431,114

This can also be written as 21 x 34 x 7611 x 1,2771 = 157,431,114

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


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