Q: What are the prime factors of the number 305,403,008?

 A: 2, 2385961

Why are those the prime factors of the number 305,403,008?

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 305,403,008

305,403,008
Factor Arrows
2152,701,504
Factor Arrows
276,350,752
Factor Arrows
238,175,376
Factor Arrows
219,087,688
Factor Arrows
29,543,844
Factor Arrows
24,771,922
Factor Arrows
22,385,961

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, 2385961

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 2 x 2,385,961 = 305,403,008

This can also be written as 27 x 2,385,9611 = 305,403,008

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


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