Q: What are the prime factors of the number 276,431,780?

 A: 2, 5, 13821589

Why are those the prime factors of the number 276,431,780?

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 276,431,780

276,431,780
Factor Arrows
2138,215,890
Factor Arrows
269,107,945
Factor Arrows
513,821,589

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, 13821589

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13,821,589 = 276,431,780

This can also be written as 22 x 51 x 13,821,5891 = 276,431,780

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


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