Divisibility

• 2

  If the number is even
• 3


  If the sum of the digit is divisible by 3
• 4

  If it's even and the last 2 digits is divisible by 4
• 5


  If the last digit is either 0 or 5
• 6

  If it's even and divisible by 3
• 8

  If it's even and the last 3 digits is divisible by 8
• 9 


  Is the sum of its digits is divisible by 9
• 10


  If the last digit is 0