Q: What are the prime factors of the number 275,128,740?

 A: 2, 3, 5, 19, 80447

Why are those the prime factors of the number 275,128,740?

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 275,128,740

275,128,740
Factor Arrows
2137,564,370
Factor Arrows
268,782,185
Factor Arrows
322,927,395
Factor Arrows
37,642,465
Factor Arrows
51,528,493
Factor Arrows
1980,447

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, 19, 80447

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 19 x 80,447 = 275,128,740

This can also be written as 22 x 32 x 51 x 191 x 80,4471 = 275,128,740

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


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