Q: What are the prime factors of the number 45,766,742?

 A: 2, 7, 41, 71, 1123

Why are those the prime factors of the number 45,766,742?

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 45,766,742

45,766,742
Factor Arrows
222,883,371
Factor Arrows
73,269,053
Factor Arrows
4179,733
Factor Arrows
711,123

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, 7, 41, 71, 1123

We can check our work by multiplying all of the prime factors together: 2 x 7 x 41 x 71 x 1,123 = 45,766,742

This can also be written as 21 x 71 x 411 x 711 x 1,1231 = 45,766,742

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


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