
Arundeep

DIVISIBILITY BY THREE : Rule: If the sum of the digits of a number is divisible by 3, the number is also divisible by 3.For example: 123 : 1+2+3 = 6 is divisible by 3; hence 123 is alSo divisible by 3. 5673 : 5+6+7+3 = 21; therefore divisible by 3. 89612: 8+9+6+1+2 = 26 = 2+6 = 8 is not divisible by 3, therefore, the number is not divisible by 3. 