Q: What are the prime factors of the number 303,572,544?

 A: 2, 3, 11, 73, 179

Why are those the prime factors of the number 303,572,544?

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 303,572,544

303,572,544
Factor Arrows
2151,786,272
Factor Arrows
275,893,136
Factor Arrows
237,946,568
Factor Arrows
218,973,284
Factor Arrows
29,486,642
Factor Arrows
24,743,321
Factor Arrows
31,581,107
Factor Arrows
11143,737
Factor Arrows
1113,067
Factor Arrows
73179

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, 11, 73, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 11 x 73 x 179 = 303,572,544

This can also be written as 26 x 31 x 112 x 731 x 1791 = 303,572,544

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


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