Q: What are the prime factors of the number 268,364,810?

 A: 2, 5, 7, 157, 24419

Why are those the prime factors of the number 268,364,810?

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 268,364,810

268,364,810
Factor Arrows
2134,182,405
Factor Arrows
526,836,481
Factor Arrows
73,833,783
Factor Arrows
15724,419

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, 7, 157, 24419

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 157 x 24,419 = 268,364,810

This can also be written as 21 x 51 x 71 x 1571 x 24,4191 = 268,364,810

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


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