Which of the following numbers has the largest number of unique prime factors?: {135, 62, 96}

1 Answer
May 4, 2016

All of them have just two unique prime factors and none has the largest number of unique primes.

Explanation:

Unique prime factors of #135# are #3# and #5# as #135=3xx3xx3xx5#

Unique prime factors of #62# are #2# and #31# as #62=2xx31#

Unique prime factors of #96# are #2# and #3# as #96=2xx2xx2xx2xx2xx3#

Hence, all of them have just two unique prime factors and none has the largest number of unique primes.