Subject: General Aptitude · Chapter: Number System · Exam: · Marks: · Difficulty:
A 6-digit number is formed by repeating a 3-digit number; for example, 256256 or 678678 etc. Any number of this form is always exactly divisible by
(a)7 only
(b)11 only
(c)13 only
(d)1001
Answer
Answer (as printed): D
Explanation
Numbers like 2525, 3636 etc. are divisible by 101. Numbers like 256256, 678678 etc. are divisible by 1001. Numbers like 32163216, 43754375 etc. are divisible by 10001 and so on.
Explanation as extracted from the printed page; notation may be imperfect.