Q: What are the prime factors of the number 54,878,285?

 A: 5, 7, 11, 2909

Why are those the prime factors of the number 54,878,285?

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 54,878,285

54,878,285
Factor Arrows
510,975,657
Factor Arrows
71,567,951
Factor Arrows
7223,993
Factor Arrows
731,999
Factor Arrows
112,909

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, 2909

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 7 x 11 x 2,909 = 54,878,285

This can also be written as 51 x 73 x 111 x 2,9091 = 54,878,285

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


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