Odpowiedź:
Szczegółowe wyjaśnienie:
1.
a) 160 = 2x80 = 2x2x40 = 2x2x2x20 = 2x2x2x2x10 = 2x2x2x2x2x5
b) 128 = 2x64 = 2x2x32 = 2x2x2x16 = 2x2x2x2x8 = 2x2x2x2x2x4 = 2x2x2x2x2x2
c) 610 = 2x305 = 2x5x61
d) 764 = 2x382 = 2x2x191
e) 840 = 2x420 = 2x2x210 = 2x2x2x105 = 2x2x2x3x35 = 2x2x2x3x5x7
f) 1350 = 2x675 = 2x3x225 = 2x3x3x75 = 2x3x3x3x25 = 2x3x3x3x5x5
2.
NWD (21,14) = 21 x 2 = 42
NWD (25,19) = 25 x 19 = 475
NWD (42,660) = 7 x 660 = 4620
NWD (60,840) = 840
NWD (150,70) = 7 x 150 = 1050
NWD (735,154) = 2 x 11 x 735 = 22 x 735 = 16170
