Q: What are the prime factors of the number 242,105,325?

 A: 3, 5, 7, 11, 53, 113

Why are those the prime factors of the number 242,105,325?

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 242,105,325

242,105,325
Factor Arrows
380,701,775
Factor Arrows
516,140,355
Factor Arrows
53,228,071
Factor Arrows
7461,153
Factor Arrows
765,879
Factor Arrows
115,989
Factor Arrows
53113

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, 5, 7, 11, 53, 113

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 7 x 7 x 11 x 53 x 113 = 242,105,325

This can also be written as 31 x 52 x 72 x 111 x 531 x 1131 = 242,105,325

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


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