Q: What are the prime factors of the number 2,598,345?

 A: 3, 5, 19, 1013

Why are those the prime factors of the number 2,598,345?

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 2,598,345

2,598,345
Factor Arrows
3866,115
Factor Arrows
3288,705
Factor Arrows
396,235
Factor Arrows
519,247
Factor Arrows
191,013

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:

3, 5, 19, 1013

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 19 x 1,013 = 2,598,345

This can also be written as 33 x 51 x 191 x 1,0131 = 2,598,345

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


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