Which of the following is a pair of coprimes?
(14,35)
(18,25)
(31,93)
(32,62)
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1
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Find the greatest number that will divide 55, 127 and 175 so as to leaves the same remainder in each case
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2
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The H.C.F. and L.C.M. of 0.63, 1.05 and 2.1
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3
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How many numbers are there between 2000 and 4000 which are divisible by 2,3,4 and 5?
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4
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Product of two coprime numbers is 117, then their LCM is
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5
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The LCM and HCF of two numbers are 84 and 21, respectively. If the ratio of the two numbers is 1 : 4, then the larger of the two numbers is
SolutionAnswer 84 
6
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HCF of 3240, 3600 and a third number is 36 and their LCM is 2^{4}×3^{5}×5^{2}×7^{2} Then the third number is
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7
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The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively is
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8
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Which of the following has the most number of divisors?
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9
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Find the LCM of 2/3, 3/5, 4/7 and 9/13.
Solution 
10
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(4^{61}+4^{62}+4^{63}+4^{64}) is divisible by
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