Q: What are the prime factors of the number 42,943,743?

 A: 3, 19, 97, 863

Why are those the prime factors of the number 42,943,743?

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 42,943,743

42,943,743
Factor Arrows
314,314,581
Factor Arrows
34,771,527
Factor Arrows
31,590,509
Factor Arrows
1983,711
Factor Arrows
97863

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:

3, 19, 97, 863

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 19 x 97 x 863 = 42,943,743

This can also be written as 33 x 191 x 971 x 8631 = 42,943,743

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


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