alleryIs 1,287 divisible by 3?
ANo, since 1+2+8+7 = 18 not divisible by 3
BYes, since 1+2+8+7 = 18 is divisible by 3
CNo, since 1287 is a prime number
DYes, since 1287 ends in 7
Answer & Solution
Correct answer: B. Yes, since 1+2+8+7 = 18 is divisible by 3
Divisibility rule for 3: sum of digits = 1+2+8+7 = 18, which IS divisible by 3. So 1287 is divisible by 3 (1287 = 429 × 3).
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