Q: What are the prime factors of the number 618,208?

 A: 2, 19319

Why are those the prime factors of the number 618,208?

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 618,208

618,208
Factor Arrows
2309,104
Factor Arrows
2154,552
Factor Arrows
277,276
Factor Arrows
238,638
Factor Arrows
219,319

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, 19319

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19,319 = 618,208

This can also be written as 25 x 19,3191 = 618,208

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


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