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There are three numbers which are co-prime to each other. The product of first two numbers is 77 and the product of last two numbers is 143. What is the difference between the largest and smallest number?

There are three numbers which are co-prime to each other. The product of first two numbers is 77 and the product of last two numbers is 143. What is the difference between the largest and smallest number? Correct Answer 6

Product of first two numbers is 77 = 7 × 11

Product of last two numbers is 143 = 11 × 13

Hence, the three numbers are 7, 11 and 13.

Difference = 13 - 7 = 6

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