For testing 4, which ending part of the number is examined?
AThe first two digits
BThe last single digit
CThe last two digits
DThe sum of all digits
Answer & Solution
Correct answer: C. The last two digits
1. Take the number formed by the last two digits.
2. If that is divisible by 4, so is the whole number.
3. Checking only the last digit is not enough: 14 ends in 4 but is not a multiple of 4.
_Source: Wikipedia, Divisibility rule, section Divisibility by 4_
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