Divisor 4
- Prime Number:
- No
Test for Divisibility by 4
To determine if any number is divisible by 4, apply this test:
- Ignore everything except the 2 right-most digits. Every larger digit than these is irrelevant because 102 is divisible by 4.
- The number should now be small enough to be able to deduce divisibility by 4 with basic application of your 4-times tables!
Easy!