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Find the greatest 3 digit number that is exactly divisible by 6 15 and 21
Given: the numbers 6,15 and 21
To find: The greatest 3 digit number that is exactly divisible by 6,15and 21
Solution:
LCM of 6,15 and 21
2|6,15,21
|3,5,7
Therefore, LCM =2$\times$3$\times$5$\times$7
= 210
The Greatest 3 digit number that is exactly divisible by 6,15 and 21 is 210
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