Answers

2015-02-20T21:50:03+05:30
Mainly the prime no. End with odd no only 2 is the even prime no. 1st see last digit of the no. If it is odd than there is possibility of prime no. 2nd add all digit with each other 3nd than try to multiple it by 3 if it does not multiply by 3 The composite even no. is always divide by 2 Odd by 3 and many more......
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