SSC CPO 2023 PYQ — Question 132

SSC CPO - 3 Oct 2023 - Shift 1 • Quantitative Aptitude • Q132

The largest number of four digits that is exactly divisible by 17 and 36 is:

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3. i.e. 9792.

Factors of 17 and 36

⇒ 17 = 1 × 17

⇒ 36 = 2 × 2 × 3 × 3

⇒ L.C.M = 22 × 32 × 17 = 4 × 9 × 17 = 612

Now, the greatest four-digit number is 9999

On dividing 9999 by 612 we get 207 as the remainder

Hence, the greatest number of four digits which is exactly divisible by 17, and 36 is 9792.