Q: What are the prime factors of the number 311,828,760?

 A: 2, 3, 5, 19, 45589

Why are those the prime factors of the number 311,828,760?

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 311,828,760

311,828,760
Factor Arrows
2155,914,380
Factor Arrows
277,957,190
Factor Arrows
238,978,595
Factor Arrows
312,992,865
Factor Arrows
34,330,955
Factor Arrows
5866,191
Factor Arrows
1945,589

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, 19, 45589

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 19 x 45,589 = 311,828,760

This can also be written as 23 x 32 x 51 x 191 x 45,5891 = 311,828,760

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


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