The least number of five digits that have 144 their HCF is__________?
Correct answer: B. 10080
- A. 10085
- B. 10080
- C. 10075
- D. 10070
Explanation
The least five-digit multiple of 144 is found by taking the first multiple at or above 10000: 144 x 69 = 9936, while 144 x 70 = 10080. Thus the answer is 10080. The likely mistake is choosing 10085, which is not divisible by 144.
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