Q: What are the prime factors of the number 266,205,432?

 A: 2, 3, 31, 43, 53, 157

Why are those the prime factors of the number 266,205,432?

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 266,205,432

266,205,432
Factor Arrows
2133,102,716
Factor Arrows
266,551,358
Factor Arrows
233,275,679
Factor Arrows
311,091,893
Factor Arrows
31357,803
Factor Arrows
438,321
Factor Arrows
53157

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, 43, 53, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 43 x 53 x 157 = 266,205,432

This can also be written as 23 x 31 x 311 x 431 x 531 x 1571 = 266,205,432

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


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