Q: What are the prime factors of the number 315,241,100?

 A: 2, 5, 269, 11719

Why are those the prime factors of the number 315,241,100?

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 315,241,100

315,241,100
Factor Arrows
2157,620,550
Factor Arrows
278,810,275
Factor Arrows
515,762,055
Factor Arrows
53,152,411
Factor Arrows
26911,719

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, 5, 269, 11719

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 269 x 11,719 = 315,241,100

This can also be written as 22 x 52 x 2691 x 11,7191 = 315,241,100

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


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