Question

What is the greatest 5 digit number exactly divisible by 18, 24 and 30

Answer 1

$\bf\huge{99720}$

The Greatest Number divisible by 18, 24 and 30 will also be divisible by their $\bf{LCM}$.

If you calculate their LCM, It turns about to be $\bf{360.}$

Any Number which is divisible by 360 is also divisible by its $\bf{I.e\:12,\:18\:and\:24.}$

To find out $\bf{Greatest\:5\:digit\:number}$ divisible by 360 we will divide 99999 by 360 and then the $\bf{subtract\:the\:remainder}$ from the $\bf{dividend(i.e\:99999)}$.

After doing the calculation you'll get your answer = 99720

Answer 2

Step-by-step explanation:

• Answer is 10080
• Because L. C. M Of 16, 18, 24, 30 is 720
• But 720 is only three digit no.
• But we want 5 digit number
• so we will divide 10000 by 720 and get 13.888
• So the Smallest Integer greater than that
• So the number is 720*14 or 10080