Q: What are the prime factors of the number 303,666,636?

 A: 2, 3, 7, 13, 21391

Why are those the prime factors of the number 303,666,636?

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 303,666,636

303,666,636
Factor Arrows
2151,833,318
Factor Arrows
275,916,659
Factor Arrows
325,305,553
Factor Arrows
73,615,079
Factor Arrows
13278,083
Factor Arrows
1321,391

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, 7, 13, 21391

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 13 x 13 x 21,391 = 303,666,636

This can also be written as 22 x 31 x 71 x 132 x 21,3911 = 303,666,636

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


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