Q: What are the prime factors of the number 26,379,648?

 A: 2, 3, 17, 449

Why are those the prime factors of the number 26,379,648?

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 26,379,648

26,379,648
Factor Arrows
213,189,824
Factor Arrows
26,594,912
Factor Arrows
23,297,456
Factor Arrows
21,648,728
Factor Arrows
2824,364
Factor Arrows
2412,182
Factor Arrows
2206,091
Factor Arrows
368,697
Factor Arrows
322,899
Factor Arrows
37,633
Factor Arrows
17449

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, 17, 449

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 3 x 3 x 3 x 17 x 449 = 26,379,648

This can also be written as 27 x 33 x 171 x 4491 = 26,379,648

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


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