C programming Bangla Tutorial 5.112 : Prime number | মৌলিক সংখ্যা নির্ণয়ের জন্য A,F,C

I have skip checking the number 1 and 2 intentionally. if you want to make it more efficient then you can easily add one more condition that will prompt the number 1 or 2 as prime. It is always better if you use your common sense.
if(num==1 || num==2)
printf("Not prime);
else {
//you may copy the existing code and check
}

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