Q: What are the prime factors of the number 157,312,056?

 A: 2, 3, 11, 53, 11243

Why are those the prime factors of the number 157,312,056?

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 157,312,056

157,312,056
Factor Arrows
278,656,028
Factor Arrows
239,328,014
Factor Arrows
219,664,007
Factor Arrows
36,554,669
Factor Arrows
11595,879
Factor Arrows
5311,243

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, 11, 53, 11243

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 53 x 11,243 = 157,312,056

This can also be written as 23 x 31 x 111 x 531 x 11,2431 = 157,312,056

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


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