Q: What are the prime factors of the number 186,767,140?

 A: 2, 5, 7, 109, 12239

Why are those the prime factors of the number 186,767,140?

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 186,767,140

186,767,140
Factor Arrows
293,383,570
Factor Arrows
246,691,785
Factor Arrows
59,338,357
Factor Arrows
71,334,051
Factor Arrows
10912,239

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:

2, 5, 7, 109, 12239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 109 x 12,239 = 186,767,140

This can also be written as 22 x 51 x 71 x 1091 x 12,2391 = 186,767,140

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


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