Q: What are the prime factors of the number 66,994?

 A: 2, 19, 41, 43

Why are those the prime factors of the number 66,994?

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 66,994

66,994
Factor Arrows
233,497
Factor Arrows
191,763
Factor Arrows
4143

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, 19, 41, 43

We can check our work by multiplying all of the prime factors together: 2 x 19 x 41 x 43 = 66,994

This can also be written as 21 x 191 x 411 x 431 = 66,994

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


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