Q: What are the prime factors of the number 156,550,149?

 A: 3, 7, 29, 12241

Why are those the prime factors of the number 156,550,149?

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 156,550,149

156,550,149
Factor Arrows
352,183,383
Factor Arrows
317,394,461
Factor Arrows
72,484,923
Factor Arrows
7354,989
Factor Arrows
2912,241

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, 7, 29, 12241

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 29 x 12,241 = 156,550,149

This can also be written as 32 x 72 x 291 x 12,2411 = 156,550,149

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


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