Q: What are the prime factors of the number 617,136?

 A: 2, 3, 13, 23, 43

Why are those the prime factors of the number 617,136?

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 617,136

617,136
Factor Arrows
2308,568
Factor Arrows
2154,284
Factor Arrows
277,142
Factor Arrows
238,571
Factor Arrows
312,857
Factor Arrows
13989
Factor Arrows
2343

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, 13, 23, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 23 x 43 = 617,136

This can also be written as 24 x 31 x 131 x 231 x 431 = 617,136

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


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