Q: What are the prime factors of the number 254,637,316?

 A: 2, 19, 107, 173, 181

Why are those the prime factors of the number 254,637,316?

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 254,637,316

254,637,316
Factor Arrows
2127,318,658
Factor Arrows
263,659,329
Factor Arrows
193,350,491
Factor Arrows
10731,313
Factor Arrows
173181

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, 19, 107, 173, 181

We can check our work by multiplying all of the prime factors together: 2 x 2 x 19 x 107 x 173 x 181 = 254,637,316

This can also be written as 22 x 191 x 1071 x 1731 x 1811 = 254,637,316

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


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