Установи закономерность и найди два числа 15,24,35,48, 9,11,31,33, 1,3,6,8,11,13, 7,9,11,12,

1 ,72,81
3,19,22
4 ,17,19

1) 15(3*5), 24, 35(5*7), 48(24*2), 63(7*9), 96(48*2), 99(9*11);
2) 9, 11, 31, 33, 53, 55, 75, 77;
3) 1, 3, 6, 8, 11, 13, 16, 18, 21, 23;
4) 7, 9, 11, 13, 15, 17, 19, 21.