This condition is wrong. This condition means: I can't be divisible by any of 3, 5 and 7.
Can't be divisible by 3, 5 and 7 at the same time.
It should read:
If (! (i % 3 = = 0 & amp& ampi % 5 = = 0 & amp& ampi%7==0))
1, perimeter and area formula of rectangle and square:
The circumference of a rectangle = (length+width) กม2 C=(a+b)กม2.
Circumference of