Q: What are the prime factors of the number 140,415,331?

 A: 7, 379, 7561

Why are those the prime factors of the number 140,415,331?

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 140,415,331

140,415,331
Factor Arrows
720,059,333
Factor Arrows
72,865,619
Factor Arrows
3797,561

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:

7, 379, 7561

We can check our work by multiplying all of the prime factors together: 7 x 7 x 379 x 7,561 = 140,415,331

This can also be written as 72 x 3791 x 7,5611 = 140,415,331

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


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