Q: What are the prime factors of the number 303,413,240?

 A: 2, 5, 13, 23, 1103

Why are those the prime factors of the number 303,413,240?

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 303,413,240

303,413,240
Factor Arrows
2151,706,620
Factor Arrows
275,853,310
Factor Arrows
237,926,655
Factor Arrows
57,585,331
Factor Arrows
13583,487
Factor Arrows
2325,369
Factor Arrows
231,103

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, 13, 23, 1103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 13 x 23 x 23 x 1,103 = 303,413,240

This can also be written as 23 x 51 x 131 x 232 x 1,1031 = 303,413,240

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


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