Is 2003 a prime no how to find out prime or composite for large digits – InterviewSolution

1.	Is 2003 a prime no how to find out prime or composite for large digits any tricks
Answer» 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 other3nd than TRY to multiple it by 3 if it does not MULTIPLY by 3THE composite even no. is always divide by 2Odd by 3 and many more......

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