Question
What is the least number that when doubled will be exactly divisible by 12, 14, 18, and 22?
A. 1216
B. 1436
C. 1286
D. 1386
Answer: D. 1386
Solution:
LCM of 12, 14, 18 and 22 = 2772
Hence the least number which will be exactly divisible by 12, 14, 18 and 22 = 2772
2772 ÷ 2 = 1386
1386 is the number which when doubled, we get 2772.
Hence, 1386 is the least number which when doubled will be exactly divisible by 12, 14, 18 and 22.
Related Question
Which of the following integers has the most number of divisors?
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