Q: What are the prime factors of the number 78,158,113?

 A: 11, 67, 173, 613

Why are those the prime factors of the number 78,158,113?

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 78,158,113

78,158,113
Factor Arrows
117,105,283
Factor Arrows
67106,049
Factor Arrows
173613

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:

11, 67, 173, 613

We can check our work by multiplying all of the prime factors together: 11 x 67 x 173 x 613 = 78,158,113

This can also be written as 111 x 671 x 1731 x 6131 = 78,158,113

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


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