What are the prime factors of 57?

1 Answer
Shwetank Mauria
Oct 20, 2016

Prime factors of #57# are #3xx19#.

Explanation:

As the sum of the digits of #57# is #12#, a multiple of #3#, hence,
#57# is divisible by #3#.

Therefore, #57=3xx19#

Now as #19# is a prime number, there are no further factors and

Prime factors of #57# are #3xx19#.

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