Why we not use else... in the prime checker

#1

dear bhaiya u use if in this pseudocode but u say we don’t use else here why?

#2

hi @Coder19
u always dont need a else for a if statement

incase we dont write else for a if it automatically means that we are doing no operation in else part
u can also mention a empty else after a if loop

#3

can we write if N is divisible by i then not prime
else i==i+1

#4

yes u definetly can do i+=1 in else part