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Find the greatest number that exactly divides 289 and 391.
Given :
The given numbers are 289 and 391.
To do :
We have to find the greatest number that exactly divides 289 and 391.
Solution :
This implies,
We have to find HCF of 289 and 391.
289)391(1
289
-----
102)289(2
204
------
85)102(1
85
----
17)85(5
85
-------
0
Therefore,
The greatest number that exactly divides 289 and 391 is 17.
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