Q: What are the prime factors of the number 2,661,632?

 A: 2, 37, 281

Why are those the prime factors of the number 2,661,632?

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 2,661,632

2,661,632
Factor Arrows
21,330,816
Factor Arrows
2665,408
Factor Arrows
2332,704
Factor Arrows
2166,352
Factor Arrows
283,176
Factor Arrows
241,588
Factor Arrows
220,794
Factor Arrows
210,397
Factor Arrows
37281

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, 37, 281

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 2 x 2 x 37 x 281 = 2,661,632

This can also be written as 28 x 371 x 2811 = 2,661,632

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


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