How do I test if a value is a multiple of

So, if I wanted an event that worked only if the value of a variable was a multiple of 4 or 8, say, or even test for only odd or even numbers?

multiple of 4: var%4=0

for multiple of 8: var%8=0

even: var%2=0

odd: var%2=1

% means MOD

dont forget a condition for zero

multiple of 4: var%4=0

for multiple of 8: var%8=0

even: var%2=0

odd: var%2=1

% means MOD

Works perfectly, thankyou!!