Q: What are the prime factors of the number 54,235,678?

 A: 2, 7, 17, 31, 7351

Why are those the prime factors of the number 54,235,678?

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 54,235,678

54,235,678
Factor Arrows
227,117,839
Factor Arrows
73,873,977
Factor Arrows
17227,881
Factor Arrows
317,351

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, 7, 17, 31, 7351

We can check our work by multiplying all of the prime factors together: 2 x 7 x 17 x 31 x 7,351 = 54,235,678

This can also be written as 21 x 71 x 171 x 311 x 7,3511 = 54,235,678

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


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