is this possible

if A is a prime number then A + 100 is also prime is A is not a part of the following series

2,5,8,11,14,17,20,23,26............

prove it also

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- Oct 8th 2009, 07:16 PMjashansinghalprime number
is this possible

if A is a prime number then A + 100 is also prime is A is not a part of the following series

2,5,8,11,14,17,20,23,26............

prove it also - Oct 8th 2009, 07:59 PMchisigma
Counterexample: is prime and is not included in the sequence , but is not a prime...

Kind regards

- Oct 9th 2009, 08:16 AMjashansinghal
leaving 19 ,

is there a possibility - Oct 9th 2009, 08:38 PMchisigma
Further counterexample: is prime, is not a prime...

Kind regards

- Oct 10th 2009, 04:34 PMaidan
There are over 300 counter examples for numbers less than 10 thousand.