Q: What are the prime factors of the number 26,910,624?

 A: 2, 3, 13, 21563

Why are those the prime factors of the number 26,910,624?

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 26,910,624

26,910,624
Factor Arrows
213,455,312
Factor Arrows
26,727,656
Factor Arrows
23,363,828
Factor Arrows
21,681,914
Factor Arrows
2840,957
Factor Arrows
3280,319
Factor Arrows
1321,563

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, 13, 21563

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 13 x 21,563 = 26,910,624

This can also be written as 25 x 31 x 131 x 21,5631 = 26,910,624

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


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