No negative numbers are prime.
11# - 1 = 2309 and 11# + 1 = 2311, both of which are prime.
p7# - 1 = 510509 and p7# + 1 = 510511, neither of which is prime.
61 is the prime number before 67.
The prime number before 8 is 7.
No negative numbers are prime.
11# - 1 = 2309 and 11# + 1 = 2311, both of which are prime.
p7# - 1 = 510509 and p7# + 1 = 510511, neither of which is prime.
61 is the prime number before 67.
13 because it is a prime number
The prime number before 8 is 7.
There is no prime number that exists to satisfy this Condition.
The only number that equals 80 is 80, and it's not a prime number.
The only number that equals 60 is 60, and it's not a prime number.
The last prime number before 50 is 47.
The largest prime number before 1000 is 997.
prime number just before 97 = 89