what is the greatest positive integer x such that 3 ^ x is a factor of 9 ^ 7 ?
what is the greatest positive integer x such that 3 ^ x is a factor of 9 ^ 7 ? 9 ^ 7 = ( 3 ^ 2 ) ^ 7 = 3 ^ 14 b . 14
multiply(subtract(9, 7), 7)