Q: What are the prime factors of the number 2,664,448?

 A: 2, 1301

Why are those the prime factors of the number 2,664,448?

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 2,664,448

2,664,448
Factor Arrows
21,332,224
Factor Arrows
2666,112
Factor Arrows
2333,056
Factor Arrows
2166,528
Factor Arrows
283,264
Factor Arrows
241,632
Factor Arrows
220,816
Factor Arrows
210,408
Factor Arrows
25,204
Factor Arrows
22,602
Factor Arrows
21,301

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, 1301

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 2 x 2 x 2 x 1,301 = 2,664,448

This can also be written as 211 x 1,3011 = 2,664,448

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


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