Q: What are the prime factors of the number 302,331,040?

 A: 2, 5, 11, 19, 9041

Why are those the prime factors of the number 302,331,040?

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 302,331,040

302,331,040
Factor Arrows
2151,165,520
Factor Arrows
275,582,760
Factor Arrows
237,791,380
Factor Arrows
218,895,690
Factor Arrows
29,447,845
Factor Arrows
51,889,569
Factor Arrows
11171,779
Factor Arrows
199,041

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, 5, 11, 19, 9041

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 19 x 9,041 = 302,331,040

This can also be written as 25 x 51 x 111 x 191 x 9,0411 = 302,331,040

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


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