Target Exam

CUET

Subject

General Aptitude Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

The smallest five digit number which is exactly divisible by 12, 15 and 18 is:

Options:

10000

10020

10080

10260

Correct Answer:

10080

Explanation:

The correct answer is Option 3:10080

Step 1: Find LCM of 12, 15, 18
12 = 2² × 3
15 = 3 × 5
18 = 2 × 3²

LCM = 2² × 3² × 5 = 180

Now we check multiple of 180 

Only 10080 is multiple of 180

The correct answer is Option (3) → 10080