Q: What are the prime factors of the number 541,666,146?

 A: 2, 3, 7, 23, 431, 1301

Why are those the prime factors of the number 541,666,146?

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 541,666,146

541,666,146
Factor Arrows
2270,833,073
Factor Arrows
390,277,691
Factor Arrows
712,896,813
Factor Arrows
23560,731
Factor Arrows
4311,301

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, 7, 23, 431, 1301

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 23 x 431 x 1,301 = 541,666,146

This can also be written as 21 x 31 x 71 x 231 x 4311 x 1,3011 = 541,666,146

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


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