Q: What are the prime factors of the number 254,836,773?

 A: 3, 47, 53, 421

Why are those the prime factors of the number 254,836,773?

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 254,836,773

254,836,773
Factor Arrows
384,945,591
Factor Arrows
328,315,197
Factor Arrows
39,438,399
Factor Arrows
33,146,133
Factor Arrows
31,048,711
Factor Arrows
4722,313
Factor Arrows
53421

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:

3, 47, 53, 421

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 47 x 53 x 421 = 254,836,773

This can also be written as 35 x 471 x 531 x 4211 = 254,836,773

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


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