how many positive integers less than 100 have a remainder of 4 when divided by 13 ?
"we have to include 4 also . as 13 * 0 + 4 = 2 if somebody says to divide 4 by 13 , we will be telling we have 0 quotient and remainder as 4 . answer is c"
divide(factorial(subtract(add(const_4, 4), const_1)), multiply(factorial(4), factorial(subtract(const_4, const_1))))