Q: What are the prime factors of the number 54,005,875?

 A: 5, 7, 11, 31, 181

Why are those the prime factors of the number 54,005,875?

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 54,005,875

54,005,875
Factor Arrows
510,801,175
Factor Arrows
52,160,235
Factor Arrows
5432,047
Factor Arrows
761,721
Factor Arrows
115,611
Factor Arrows
31181

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:

5, 7, 11, 31, 181

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 7 x 11 x 31 x 181 = 54,005,875

This can also be written as 53 x 71 x 111 x 311 x 1811 = 54,005,875

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


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