the expression x # y denotes the product of the consecutive multiples of 3 between x and y , inclusive . what is the sum of the exponents in the prime factorization of 21 # 42 ?
"21 # 42 = 21 * 24 * 27 * 30 * 33 * 36 * 39 * 42 = 3 ^ 11 * 7 ^ 2 * 2 ^ 7 * 5 ^ 1 * 11 ^ 1 * 13 ^ 1 so total is = 11 + 2 + 7 + 1 + 1 + 1 = 23 answer a"
add(add(add(3, add(const_2, const_2)), add(const_2, const_2)), add(3, add(const_2, const_2)))