Q: What are the prime factors of the number 621,048?

 A: 2, 3, 113, 229

Why are those the prime factors of the number 621,048?

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 621,048

621,048
Factor Arrows
2310,524
Factor Arrows
2155,262
Factor Arrows
277,631
Factor Arrows
325,877
Factor Arrows
113229

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, 113, 229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 113 x 229 = 621,048

This can also be written as 23 x 31 x 1131 x 2291 = 621,048

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


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