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Earn 100
Sum of two numbers is . If their LCM is , then the numbers are
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Important Questions on HCF and LCM
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The greatest number of three digits which when added to is exactly divisible by is
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The sum of two numbers is and their difference is of their sum. Their HCF is
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Three numbers which are co-prime to one another are such that the product of first two is and that of the last two is ; the sum of the three numbers is
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A boy running up a staircase finds that when he goes up two steps at a time there is one step over; when he goes up three at a time there are two over and when he goes up four at a time, there are three over. Find the number of stairs, which is somewhere between and .
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A number when divided by leaves a remainder , when divided by leaves a remainder , when divided by leaves a remainder and when divided by leaves a remainder . Determine the number.
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When and are divided by a certain number of three digits, the remainders are the same. Find the remainder.
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Four prime numbers are written in ascending order of their magnitudes. The product of first three is and that of last three is . What is the largest given prime number?
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The LCM of two numbers is per cent more than their HCF and the sum of LCM and HCF of two numbers is . If one of the numbers is , find the other number.
