Q: What are the prime factors of the number 61,461,309?

 A: 3, 7, 13, 225133

Why are those the prime factors of the number 61,461,309?

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 61,461,309

61,461,309
Factor Arrows
320,487,103
Factor Arrows
72,926,729
Factor Arrows
13225,133

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:

3, 7, 13, 225133

We can check our work by multiplying all of the prime factors together: 3 x 7 x 13 x 225,133 = 61,461,309

This can also be written as 31 x 71 x 131 x 225,1331 = 61,461,309

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


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