Q: What are the prime factors of the number 157,881,615?

 A: 3, 5, 719, 14639

Why are those the prime factors of the number 157,881,615?

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 157,881,615

157,881,615
Factor Arrows
352,627,205
Factor Arrows
510,525,441
Factor Arrows
71914,639

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:

3, 5, 719, 14639

We can check our work by multiplying all of the prime factors together: 3 x 5 x 719 x 14,639 = 157,881,615

This can also be written as 31 x 51 x 7191 x 14,6391 = 157,881,615

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


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