Aptitude - Problems on H.C.F and L.C.M - Discussion

Discussion Forum : Problems on H.C.F and L.C.M - General Questions (Q.No. 1)
1.
Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
4
7
9
13
Answer: Option
Explanation:

Required number = H.C.F. of (91 - 43), (183 - 91) and (183 - 43)

     = H.C.F. of 48, 92 and 140 = 4.

Discussion:
212 comments Page 22 of 22.

Anup said:   2 months ago
Why need to subtract and generate a new number, then take hcf ? Anyone, please explain to me.
(3)

Rocky said:   2 months ago
If any one number is prime, then HCF will be 1.
(3)


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