Q: What are the prime factors of the number 21,220,114?

 A: 2, 17, 36713

Why are those the prime factors of the number 21,220,114?

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 21,220,114

21,220,114
Factor Arrows
210,610,057
Factor Arrows
17624,121
Factor Arrows
1736,713

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, 17, 36713

We can check our work by multiplying all of the prime factors together: 2 x 17 x 17 x 36,713 = 21,220,114

This can also be written as 21 x 172 x 36,7131 = 21,220,114

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


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