Q: What are the prime factors of the number 261,568?

 A: 2, 61, 67

Why are those the prime factors of the number 261,568?

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 261,568

261,568
Factor Arrows
2130,784
Factor Arrows
265,392
Factor Arrows
232,696
Factor Arrows
216,348
Factor Arrows
28,174
Factor Arrows
24,087
Factor Arrows
6167

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, 61, 67

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 61 x 67 = 261,568

This can also be written as 26 x 611 x 671 = 261,568

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


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