Q: What are the prime factors of the number 43,161,744?

 A: 2, 3, 29, 101, 307

Why are those the prime factors of the number 43,161,744?

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 43,161,744

43,161,744
Factor Arrows
221,580,872
Factor Arrows
210,790,436
Factor Arrows
25,395,218
Factor Arrows
22,697,609
Factor Arrows
3899,203
Factor Arrows
2931,007
Factor Arrows
101307

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, 3, 29, 101, 307

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 29 x 101 x 307 = 43,161,744

This can also be written as 24 x 31 x 291 x 1011 x 3071 = 43,161,744

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


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