Q: What are the prime factors of the number 545,040,144?

 A: 2, 3, 11, 10427

Why are those the prime factors of the number 545,040,144?

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 545,040,144

545,040,144
Factor Arrows
2272,520,072
Factor Arrows
2136,260,036
Factor Arrows
268,130,018
Factor Arrows
234,065,009
Factor Arrows
311,355,003
Factor Arrows
33,785,001
Factor Arrows
31,261,667
Factor Arrows
11114,697
Factor Arrows
1110,427

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, 11, 10427

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 11 x 11 x 10,427 = 545,040,144

This can also be written as 24 x 33 x 112 x 10,4271 = 545,040,144

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


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