Q: What are the prime factors of the number 256,404,465?

 A: 3, 5, 97, 58741

Why are those the prime factors of the number 256,404,465?

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 256,404,465

256,404,465
Factor Arrows
385,468,155
Factor Arrows
328,489,385
Factor Arrows
55,697,877
Factor Arrows
9758,741

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, 5, 97, 58741

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 97 x 58,741 = 256,404,465

This can also be written as 32 x 51 x 971 x 58,7411 = 256,404,465

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


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