Q: What are the prime factors of the number 17,655,214?

 A: 2, 17, 23, 107, 211

Why are those the prime factors of the number 17,655,214?

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 17,655,214

17,655,214
Factor Arrows
28,827,607
Factor Arrows
17519,271
Factor Arrows
2322,577
Factor Arrows
107211

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, 23, 107, 211

We can check our work by multiplying all of the prime factors together: 2 x 17 x 23 x 107 x 211 = 17,655,214

This can also be written as 21 x 171 x 231 x 1071 x 2111 = 17,655,214

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


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