10000000 & 00111010 = 00000000 = 0 .. /128 = 0 01000000 & 00111010 = 00000000 = 0 .. /64 = 0 00100000 & 00111010 = 00100000 = 32 .. /32 = 1 00010000 & 00111010 = 00010000 = 16 .. /16 = 1 00001000 & 00111010 = 00001000 = 8 .. /8 = 1 00000100 & 00111010 = 00000000 = 0 .. /4 = 0 00000010 & 00111010 = 00000010 = 2 .. /2 = 1 00000001 & 00111010 = 00000000 = 0 .. /1 = 0