Q: What are the prime factors of the number 231,548,145?

 A: 3, 5, 31, 16063

Why are those the prime factors of the number 231,548,145?

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 231,548,145

231,548,145
Factor Arrows
377,182,715
Factor Arrows
515,436,543
Factor Arrows
31497,953
Factor Arrows
3116,063

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, 31, 16063

We can check our work by multiplying all of the prime factors together: 3 x 5 x 31 x 31 x 16,063 = 231,548,145

This can also be written as 31 x 51 x 312 x 16,0631 = 231,548,145

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


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