Q: What are the prime factors of the number 357,612,728?

 A: 2, 11, 4063781

Why are those the prime factors of the number 357,612,728?

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 357,612,728

357,612,728
Factor Arrows
2178,806,364
Factor Arrows
289,403,182
Factor Arrows
244,701,591
Factor Arrows
114,063,781

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, 11, 4063781

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 4,063,781 = 357,612,728

This can also be written as 23 x 111 x 4,063,7811 = 357,612,728

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


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