Test of divisibility by 3-All multiples of 3 that is 3,6, 9, 12, 15, 18, 21, 24, 27, 30, 33,..and sum of the digits of these numbers is divisible by 3.
Examples-
Of the numbers 514, 5343, 3965, 3625 which numbers are divisible by the number 3?
- 514
The sum of digits in the number 514 is 5 + 1 + 4 = 10,
The number 10 is not completely divisible by 3 so the number 514 is not divisible by 3.
- 5343
The sum of digits in the number 5343 is 5 + 3 + 4 + 3 = 15.
The number 15 is divisible by 3. So the number 5343 is divisible by 3.
- 3465
The sum of digits in the number 3465 is 3 + 4 + 6 + 5 =18.
The number 18 is divisible by 3. So 3465 is divisible by 3.
Keep reading- Divisibility test by 3
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