Doubt in the solution

#1

in the for loop why is the condition n-1 and not n

#2

Hi so a number is prime if it is divisible by 1 and number itself. so to check its prime or not we run a loop from 2 to n-1. if n is divisible by any i(from 2 to n-1) then the number is not prime else it is prime.
Hope it clears ur doubt

#3

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