Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

The smallest 3 -digit number which is exactly divisible by 6,8 and 12  is ____.


see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

Concept- The smallest 3 -digit number which is exactly divisible by 6,8 and 12  is 120.
The integer must be divisible by 2 and 3 in order to be divided by 6. The criterion is that for an integer of 8, the last three digits must be divisible by 8. The integer must be divisible by 3 and 4 in order to be divided by 12.
So, we have to first find the LCM of 6,8 and 12. This is given by-
Question ImageThe LCM is the product of the prime factors obtained.
Question ImageNow let's determine the multiples of 24. Our final solution will be the first multiple that has three digits.
Question ImageQuestion ImageQuestion ImageQuestion ImageQuestion ImageTherefore, 120 is the smallest three-digit integer that is precisely divisible by 6, 8, and 12.
Hence, the correct answer is 120.
 Syllabus: CBSE
Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring