Q: What are the prime factors of the number 261,100,710?

 A: 2, 3, 5, 13, 41, 5443

Why are those the prime factors of the number 261,100,710?

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 261,100,710

261,100,710
Factor Arrows
2130,550,355
Factor Arrows
343,516,785
Factor Arrows
314,505,595
Factor Arrows
52,901,119
Factor Arrows
13223,163
Factor Arrows
415,443

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, 5, 13, 41, 5443

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 13 x 41 x 5,443 = 261,100,710

This can also be written as 21 x 32 x 51 x 131 x 411 x 5,4431 = 261,100,710

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


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