Q: What are the prime factors of the number 137,743,221?

 A: 3, 7, 11, 596291

Why are those the prime factors of the number 137,743,221?

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 137,743,221

137,743,221
Factor Arrows
345,914,407
Factor Arrows
76,559,201
Factor Arrows
11596,291

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, 11, 596291

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 596,291 = 137,743,221

This can also be written as 31 x 71 x 111 x 596,2911 = 137,743,221

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


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