Q: What are the prime factors of the number 305,001,440?

 A: 2, 5, 1906259

Why are those the prime factors of the number 305,001,440?

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 305,001,440

305,001,440
Factor Arrows
2152,500,720
Factor Arrows
276,250,360
Factor Arrows
238,125,180
Factor Arrows
219,062,590
Factor Arrows
29,531,295
Factor Arrows
51,906,259

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, 1906259

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 1,906,259 = 305,001,440

This can also be written as 25 x 51 x 1,906,2591 = 305,001,440

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


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