>>12949568Very interesting operation. Star adds the number of unique prime divisors of the left number to the left number, then multiplies by right.
9*3 = (9+1)* 3 = 30 since 9 = 3^2
6*5 = (6+2)*5 = 40 since 6 =2x3
4*3 = (4+1)*3 = 15 since 4 = 2^2
So it really comes down to how many unique prime divisors 7 has, which can be interpreted as 0 or 1 I guess. The answer is either 35 or 40.
