Q: What are the prime factors of the number 66,443,454?

 A: 2, 3, 7, 11, 47939

Why are those the prime factors of the number 66,443,454?

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 66,443,454

66,443,454
Factor Arrows
233,221,727
Factor Arrows
311,073,909
Factor Arrows
33,691,303
Factor Arrows
7527,329
Factor Arrows
1147,939

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, 11, 47939

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 11 x 47,939 = 66,443,454

This can also be written as 21 x 32 x 71 x 111 x 47,9391 = 66,443,454

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


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