필수예제6)(1)3x3(2)2x2x2x2x2x2x2(3)2x2x2x5x5x5//유제6)(1) 5x5x5 (2) 2x2x5x5 (3) 3x3x3x3//6+1)(1)2x2x2x2(2)2x2x3x3//필수예제7)2x2x2,3x3x3x3,2x2,3x7
당신은 어느 그룹입니까?