Q: What are the prime factors of the number 303,402,330?

 A: 2, 3, 5, 7, 11, 43781

Why are those the prime factors of the number 303,402,330?

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 303,402,330

303,402,330
Factor Arrows
2151,701,165
Factor Arrows
350,567,055
Factor Arrows
316,855,685
Factor Arrows
53,371,137
Factor Arrows
7481,591
Factor Arrows
1143,781

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, 7, 11, 43781

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 7 x 11 x 43,781 = 303,402,330

This can also be written as 21 x 32 x 51 x 71 x 111 x 43,7811 = 303,402,330

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


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