Q: What are the prime factors of the number 3,298,240?

 A: 2, 5, 11, 937

Why are those the prime factors of the number 3,298,240?

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 3,298,240

3,298,240
Factor Arrows
21,649,120
Factor Arrows
2824,560
Factor Arrows
2412,280
Factor Arrows
2206,140
Factor Arrows
2103,070
Factor Arrows
251,535
Factor Arrows
510,307
Factor Arrows
11937

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, 5, 11, 937

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 5 x 11 x 937 = 3,298,240

This can also be written as 26 x 51 x 111 x 9371 = 3,298,240

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


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