Problems on H.C.F and L.C.M
The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:

4
1
3
2

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Problems on H.C.F and L.C.M
What is the greatest number that will divide 99, 147 and 219 leaving the same reminder in each case?

24
23
25
22

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