Number System Concepts for SSC And Railway Exam:
2. Product of two numbers = L.C.M. of the numbers × H.C.F. of the numbers
3. To find the greatest number that will exactly divide x, y and z.
4. To find the greatest number that will divide x, y and z leaving remainders a, b and c, respectively.
5. To find the least number which is exactly divisible by x, y and z.
6. To find the least number which when divided by x, y and z leaves the remainders a, b and c, respectively. It is always observed that (x – a) = (y – b) = (z – c) = k (say)
7. To find the least number which when divided by x, y and z leaves the same remainder r in each case.
8. To find the greatest number that will divide x, y and z leaving the same remainder in each case.
9. To find the n-digit greatest number which, when divided by x, y and z.
(A) leaves no remainder (i.e., exactly divisible)
(B) leaves remainder K in each case.
10. To find the n-digit smallest number which when divided by x, y and z.
(A) leaves no remainder (i.e., exactly divisible)
(B) leaves remainder K in each case.
