a) 1000
b) 1257
c) 1263
d) 1683
Answer: c
Explanation: The least possible number = (LCM of 4, 5, 6 and 7) + 3
= 420 + 3
= 423
The next higher number is,
(420m + 3), now we put a least value of m such that
(420m + 3) ≥ 1000
At m = 3,
value = 420 × 3 + 3 = 1263
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