Q: What are the prime factors of the number 54,005,880?

 A: 2, 3, 5, 421, 1069

Why are those the prime factors of the number 54,005,880?

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 54,005,880

54,005,880
Factor Arrows
227,002,940
Factor Arrows
213,501,470
Factor Arrows
26,750,735
Factor Arrows
32,250,245
Factor Arrows
5450,049
Factor Arrows
4211,069

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, 5, 421, 1069

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 421 x 1,069 = 54,005,880

This can also be written as 23 x 31 x 51 x 4211 x 1,0691 = 54,005,880

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


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