Q: What are the prime factors of the number 285,338,304?

 A: 2, 3, 97, 5107

Why are those the prime factors of the number 285,338,304?

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 285,338,304

285,338,304
Factor Arrows
2142,669,152
Factor Arrows
271,334,576
Factor Arrows
235,667,288
Factor Arrows
217,833,644
Factor Arrows
28,916,822
Factor Arrows
24,458,411
Factor Arrows
31,486,137
Factor Arrows
3495,379
Factor Arrows
975,107

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, 97, 5107

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 3 x 97 x 5,107 = 285,338,304

This can also be written as 26 x 32 x 971 x 5,1071 = 285,338,304

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


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