Bunuel wrote:
c and d are prime numbers. If c - d is an odd prime, then which of the following must be true?
(A) c is even
(B) d is odd
(C) c*d is odd
(D) d is even
(E) c*d - c is even
Hi Bunuel,
Can you please help me to clarify my doubt for the above question. The question states that C & D are Prime Numbers and the option states that C & D are even/odd numbers. Is it right??
Also, odd prime numbers are all the prime numbers except 2 .. Am I right to think this??
Apologies if this is a stupid doubt
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The only even prime is 2. All other primes are odd.