Q: What are the prime factors of the number 276,740,828?

 A: 2, 7, 13, 313, 347

Why are those the prime factors of the number 276,740,828?

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 276,740,828

276,740,828
Factor Arrows
2138,370,414
Factor Arrows
269,185,207
Factor Arrows
79,883,601
Factor Arrows
71,411,943
Factor Arrows
13108,611
Factor Arrows
313347

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, 7, 13, 313, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 13 x 313 x 347 = 276,740,828

This can also be written as 22 x 72 x 131 x 3131 x 3471 = 276,740,828

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


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