Q: What are the prime factors of the number 54,361,538?

 A: 2, 7, 11, 31, 59, 193

Why are those the prime factors of the number 54,361,538?

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 54,361,538

54,361,538
Factor Arrows
227,180,769
Factor Arrows
73,882,967
Factor Arrows
11352,997
Factor Arrows
3111,387
Factor Arrows
59193

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, 11, 31, 59, 193

We can check our work by multiplying all of the prime factors together: 2 x 7 x 11 x 31 x 59 x 193 = 54,361,538

This can also be written as 21 x 71 x 111 x 311 x 591 x 1931 = 54,361,538

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


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