What is the prime factorization of 78?

1 Answer
Oct 6, 2016

Prime factorization of #78# is #78=2xx3xx13#

Explanation:

As the last digit is #8# and even number, #78# is divisible by #2#

and as sum of the digits is #15# divisible by #3#, #78# is divisible by #3#

Dividing by #2# we get #39# and dividing #39# by #3#, we get #13#, a rime number.

Hence, prime factorization of #78# is #78=2xx3xx13#