Q: What are the prime factors of the number 303,400,320?

 A: 2, 3, 5, 29, 5449

Why are those the prime factors of the number 303,400,320?

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 303,400,320

303,400,320
Factor Arrows
2151,700,160
Factor Arrows
275,850,080
Factor Arrows
237,925,040
Factor Arrows
218,962,520
Factor Arrows
29,481,260
Factor Arrows
24,740,630
Factor Arrows
22,370,315
Factor Arrows
3790,105
Factor Arrows
5158,021
Factor Arrows
295,449

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, 29, 5449

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 3 x 5 x 29 x 5,449 = 303,400,320

This can also be written as 27 x 31 x 51 x 291 x 5,4491 = 303,400,320

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


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