Q: What are the prime factors of the number 261,043,475?

 A: 5, 7, 11, 135607

Why are those the prime factors of the number 261,043,475?

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 261,043,475

261,043,475
Factor Arrows
552,208,695
Factor Arrows
510,441,739
Factor Arrows
71,491,677
Factor Arrows
11135,607

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:

5, 7, 11, 135607

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 11 x 135,607 = 261,043,475

This can also be written as 52 x 71 x 111 x 135,6071 = 261,043,475

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


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