Q: What are the prime factors of the number 105,472,305?

 A: 3, 5, 433, 5413

Why are those the prime factors of the number 105,472,305?

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 105,472,305

105,472,305
Factor Arrows
335,157,435
Factor Arrows
311,719,145
Factor Arrows
52,343,829
Factor Arrows
4335,413

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, 433, 5413

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 433 x 5,413 = 105,472,305

This can also be written as 32 x 51 x 4331 x 5,4131 = 105,472,305

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


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