Q: What are the prime factors of the number 304,072,000?

 A: 2, 5, 191, 199

Why are those the prime factors of the number 304,072,000?

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 304,072,000

304,072,000
Factor Arrows
2152,036,000
Factor Arrows
276,018,000
Factor Arrows
238,009,000
Factor Arrows
219,004,500
Factor Arrows
29,502,250
Factor Arrows
24,751,125
Factor Arrows
5950,225
Factor Arrows
5190,045
Factor Arrows
538,009
Factor Arrows
191199

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, 191, 199

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 5 x 5 x 5 x 191 x 199 = 304,072,000

This can also be written as 26 x 53 x 1911 x 1991 = 304,072,000

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


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