Monday, June 14

Divisibility rules

Divisibility rules:
  • Numbers ending with 0‚ 2‚ 4‚ 6 or 8 are divisible by 2
  • If the sum of the digits of a given number is divisible by 3, the number is divisible by 3.
  • If the number formed by the end two digits of a given number is divisible by 4‚ then the number will be divisible by 4.
  • Numbers ending with 0 or 5 are divisible by 5
  • If the number formed by the end three digits of a given number is divisible by 8‚ then the number will be divisible by 8.
  • If the sum of the digits of a number is divisible by 9, the number is divisible by 9.
  • Numbers ending with 0 are divisible by 10
  • If the difference of the sums of the digits in alternate places is divisible by 11, the number is divisible by 11.

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