Q: What are the prime factors of the number 43,109,150?

 A: 2, 5, 7, 123169

Why are those the prime factors of the number 43,109,150?

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 43,109,150

43,109,150
Factor Arrows
221,554,575
Factor Arrows
54,310,915
Factor Arrows
5862,183
Factor Arrows
7123,169

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, 123169

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 123,169 = 43,109,150

This can also be written as 21 x 52 x 71 x 123,1691 = 43,109,150

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


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