A.a+b is prime.
B.ab is odd.
C.a(a-b) is odd.
D.a-b is prime.
E.ab is even.
A.a+b is prime.
B.ab is odd.
C.a(a-b) is odd.
D.a-b is prime.
E.fff\(a^b\)/fff is even.
A.a+b is prime.
B.ab is odd.
C.a(a-b) is odd.
D.a-b is prime.
E.ab is even.
A.a+b is prime.
B.ab is odd.
C.a(a-b) is odd.
D.a-b is prime.
E.fff\(a^b\)/fff is even.