Q: What are the prime factors of the number 30,503,264?

 A: 2, 11, 193, 449

Why are those the prime factors of the number 30,503,264?

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 30,503,264

30,503,264
Factor Arrows
215,251,632
Factor Arrows
27,625,816
Factor Arrows
23,812,908
Factor Arrows
21,906,454
Factor Arrows
2953,227
Factor Arrows
1186,657
Factor Arrows
193449

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, 11, 193, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 193 x 449 = 30,503,264

This can also be written as 25 x 111 x 1931 x 4491 = 30,503,264

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


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