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(Last digit 0 or 5)
A number is divisible by 5 if its last digit is 0 or 5. No other digits work.
Reason: 10 is divisible by 5, so any multiple of 10 is divisible by 5. The last digit determines the remainder when dividing by 5.
Example: 1230 and 1235 are both divisible by 5. But 1232 is not.
