Q: What are the prime factors of the number 609,620?

 A: 2, 5, 11, 17, 163

Why are those the prime factors of the number 609,620?

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 609,620

609,620
Factor Arrows
2304,810
Factor Arrows
2152,405
Factor Arrows
530,481
Factor Arrows
112,771
Factor Arrows
17163

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, 5, 11, 17, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 17 x 163 = 609,620

This can also be written as 22 x 51 x 111 x 171 x 1631 = 609,620

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


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