№581.
a = 30 b = 75 c = 42 d=88
30 / 1 = 30 75 / 1 = 75 42 / 1 = 42 88 / 1 = 88
30 / 2 = 15 75 / 3 = 25 42 / 2 = 21 88 / 2 = 44
30 / 3 = 10 75 / 5 = 15 42 / 3 = 14 88 / 4 = 22
30 / 5 = 6 75 / 15 = 5 42 / 6 = 7 88 / 8 = 11
30 / 6 = 5 75 / 25 = 3 42 / 7 = 6 88 / 11 = 8
30 / 10 = 3 75 / 75 = 1 42 / 14 = 3 88 / 22 = 4
30 / 15 = 2 42 / 21 = 2 88 / 44 = 2
30 / 30 = 1 42 / 42 = 1 88 / 88 = 1
№ 582
x = 11, ряд: 11, 22, 33, 44...
y = 9, ряд: 9, 18, 27, 36...
m = 13, ряд: 13, 26, 39, 52...
n = 15, ряд: 15, 30, 45, 60...