Q: What are the prime factors of the number 43,243,956?

 A: 2, 3, 7, 23, 829

Why are those the prime factors of the number 43,243,956?

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 43,243,956

43,243,956
Factor Arrows
221,621,978
Factor Arrows
210,810,989
Factor Arrows
33,603,663
Factor Arrows
31,201,221
Factor Arrows
3400,407
Factor Arrows
3133,469
Factor Arrows
719,067
Factor Arrows
23829

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, 7, 23, 829

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 7 x 23 x 829 = 43,243,956

This can also be written as 22 x 34 x 71 x 231 x 8291 = 43,243,956

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


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