Q: What are the prime factors of the number 315,540,015?

 A: 3, 5, 7, 181, 16603

Why are those the prime factors of the number 315,540,015?

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 315,540,015

315,540,015
Factor Arrows
3105,180,005
Factor Arrows
521,036,001
Factor Arrows
73,005,143
Factor Arrows
18116,603

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, 181, 16603

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 181 x 16,603 = 315,540,015

This can also be written as 31 x 51 x 71 x 1811 x 16,6031 = 315,540,015

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


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