Q: What are the prime factors of the number 245,310,120?

 A: 2, 3, 5, 11, 6883

Why are those the prime factors of the number 245,310,120?

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 245,310,120

245,310,120
Factor Arrows
2122,655,060
Factor Arrows
261,327,530
Factor Arrows
230,663,765
Factor Arrows
310,221,255
Factor Arrows
33,407,085
Factor Arrows
31,135,695
Factor Arrows
3378,565
Factor Arrows
575,713
Factor Arrows
116,883

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, 3, 5, 11, 6883

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 11 x 6,883 = 245,310,120

This can also be written as 23 x 34 x 51 x 111 x 6,8831 = 245,310,120

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


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