Q: What are the prime factors of the number 515,114,352?

 A: 2, 3, 31, 257, 449

Why are those the prime factors of the number 515,114,352?

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 515,114,352

515,114,352
Factor Arrows
2257,557,176
Factor Arrows
2128,778,588
Factor Arrows
264,389,294
Factor Arrows
232,194,647
Factor Arrows
310,731,549
Factor Arrows
33,577,183
Factor Arrows
31115,393
Factor Arrows
257449

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, 31, 257, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 31 x 257 x 449 = 515,114,352

This can also be written as 24 x 32 x 311 x 2571 x 4491 = 515,114,352

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


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