Divisibility Rules

Rule for 1:

• All whole numbers are divisible by one

e.g:
3÷1=3
111÷1=111

Rule for 2:

• All even numbers are divisible by 2.
• Even numbers end in 0, 2, 4, 6, and 8.
• Odd numbers end in 1, 3, 5, 7, and 9.

Rule for 4:

• All numbers that are divisible by 2 twice.

e.g:
16÷2=8÷2=4
16 is divisible by 4.

Rule for 8:

• All whole numbers divisible by 2 thrice.

e.g:
24÷2=12÷2=6÷2=3
24 is divisible by 8.

Rule for 5:

• All numbers ending in 5 or 0.

e.g: 5,10,15,20........


Rule for 10:
Any whole numbers ending in 0.

e.g: 10,20,30,40............