Q: What are the prime factors of the number 619,968?

 A: 2, 3, 3229

Why are those the prime factors of the number 619,968?

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 619,968

619,968
Factor Arrows
2309,984
Factor Arrows
2154,992
Factor Arrows
277,496
Factor Arrows
238,748
Factor Arrows
219,374
Factor Arrows
29,687
Factor Arrows
33,229

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, 3229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3,229 = 619,968

This can also be written as 26 x 31 x 3,2291 = 619,968

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


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