Q: What are the prime factors of the number 303,423,516?

 A: 2, 3, 11, 53, 61, 79

Why are those the prime factors of the number 303,423,516?

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 303,423,516

303,423,516
Factor Arrows
2151,711,758
Factor Arrows
275,855,879
Factor Arrows
325,285,293
Factor Arrows
38,428,431
Factor Arrows
32,809,477
Factor Arrows
11255,407
Factor Arrows
534,819
Factor Arrows
6179

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, 53, 61, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 11 x 53 x 61 x 79 = 303,423,516

This can also be written as 22 x 33 x 111 x 531 x 611 x 791 = 303,423,516

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


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