Q: What are the prime factors of the number 2,439,330?

 A: 2, 3, 5, 17, 4783

Why are those the prime factors of the number 2,439,330?

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 2,439,330

2,439,330
Factor Arrows
21,219,665
Factor Arrows
3406,555
Factor Arrows
581,311
Factor Arrows
174,783

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, 5, 17, 4783

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 17 x 4,783 = 2,439,330

This can also be written as 21 x 31 x 51 x 171 x 4,7831 = 2,439,330

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


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