Follow-up from the discussion on 9 January 2013 (Wednesday), Notes p2 Q5

Add any two primes greater than 2, we will get an even number. Explain clearly, using algebra on why the result is always an even number. Enter your response in "Comments" Remember to sign off your answer with your group number

All the prime numbers greater than 2 are all odd numbers.Treat a as 2. So, 3 =1.5a. 1.5a+1.5a=3a which is 6, an even number

ReplyDeleteall prime numbers except 2 are odd.

ReplyDeleteas when two odd numbers add together, they become an even number.