Q: What are the prime factors of the number 39,543,427?

 A: 7, 11, 19, 151, 179

Why are those the prime factors of the number 39,543,427?

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 39,543,427

39,543,427
Factor Arrows
75,649,061
Factor Arrows
11513,551
Factor Arrows
1927,029
Factor Arrows
151179

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, 11, 19, 151, 179

We can check our work by multiplying all of the prime factors together: 7 x 11 x 19 x 151 x 179 = 39,543,427

This can also be written as 71 x 111 x 191 x 1511 x 1791 = 39,543,427

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


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