Q: What are the prime factors of the number 18,601,143?

 A: 3, 11, 47, 67, 179

Why are those the prime factors of the number 18,601,143?

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 18,601,143

18,601,143
Factor Arrows
36,200,381
Factor Arrows
11563,671
Factor Arrows
4711,993
Factor Arrows
67179

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, 11, 47, 67, 179

We can check our work by multiplying all of the prime factors together: 3 x 11 x 47 x 67 x 179 = 18,601,143

This can also be written as 31 x 111 x 471 x 671 x 1791 = 18,601,143

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


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