QA – Placement Quizzes | LCM | Question 7
What is the least number which when divided by 4, 5, 6 and 7 leaves a remainder 3, but when divided by 9 leaves no remainder?
Explanation: LCM of 4,5,6,7 is 420
=>(420k+3) should be divisible by 9
if k =1, 423/9 remainder !=0
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