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Czech-Polish-Slovak Match
1999 Czech and Slovak Match
6
6
Part of
1999 Czech and Slovak Match
Problems
(1)
inequality with least common multiple of n numbers
Source: Czech and Slovak Match 1999 P6
10/1/2017
Prove that for any integer
n
≥
3
n \ge 3
n
≥
3
, the least common multiple of the numbers
1
,
2
,
.
.
.
,
n
1,2, ... ,n
1
,
2
,
...
,
n
is greater than
2
n
−
1
2^{n-1}
2
n
−
1
.
inequalities
least common multiple
number theory