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GCD & LCM
hard
0:00.0
Find
GCD
(
3
4
−
1
,
3
5
−
1
)
\text{GCD}(3^{4}-1, 3^{5}-1)
GCD
(
3
4
−
1
,
3
5
−
1
)
.
A
2
B
2
C
3486784400
D
1
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