## Divisibility of a number by 3 shortcut tricks

**Divisibility of a number by 3**

If the Sum or addition of all numbers that is given is divisible by 3 then the number is divisible by 3.

**Example:** 861 / 3 = **287**. **(8+6+1)** = 15 and 15 is divisible by 3, So the 861 is divisible by 3.

**Example:** 22104 / 3 =** 7368. (2+2+1+0+4)** = 9. 9 / 3 = 3, So 22104 divisible by 3.

**Example:** 99954 / 3 = **33318.** **(9+9+9+5+4) **= 36. 36 / 3 = 12, So 99954 divisible by 3

**Example:** 87921 / 3 = **29307. (8+7+9+2+1)** = 27. 27 / 3 = 9, So 87921 divisible by 3

**Example:** 69321 / 3 = 23107. **(6+9+3+2+1)** = 21. 21 / 3 = 7, So 69321 divisible by 3

**Example:** 1359 / 3 = **453**.** (1+3+5+9) **= 18. 18 / 3 = 6, So 1359 divisible by 3

**Note: So Before going to divisible by 3 any number, first check the addition of all numbers is divisible by 3.**