Q: What are the prime factors of the number 2,541,330?

 A: 2, 3, 5, 11, 17, 151

Why are those the prime factors of the number 2,541,330?

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 2,541,330

2,541,330
Factor Arrows
21,270,665
Factor Arrows
3423,555
Factor Arrows
3141,185
Factor Arrows
528,237
Factor Arrows
112,567
Factor Arrows
17151

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, 11, 17, 151

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 11 x 17 x 151 = 2,541,330

This can also be written as 21 x 32 x 51 x 111 x 171 x 1511 = 2,541,330

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


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