Q: What are the prime factors of the number 310,410,144?

 A: 2, 3, 11, 19, 191

Why are those the prime factors of the number 310,410,144?

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 310,410,144

310,410,144
Factor Arrows
2155,205,072
Factor Arrows
277,602,536
Factor Arrows
238,801,268
Factor Arrows
219,400,634
Factor Arrows
29,700,317
Factor Arrows
33,233,439
Factor Arrows
31,077,813
Factor Arrows
3359,271
Factor Arrows
3119,757
Factor Arrows
339,919
Factor Arrows
113,629
Factor Arrows
19191

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, 11, 19, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 11 x 19 x 191 = 310,410,144

This can also be written as 25 x 35 x 111 x 191 x 1911 = 310,410,144

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


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