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JungHwan Min's user avatar
JungHwan Min's user avatar
JungHwan Min's user avatar
JungHwan Min
  • Member for 7 years, 8 months
  • Last seen more than a month ago
21 votes
13 answers
1k views

LCM of Rational Numbers

21 votes
14 answers
2k views

Is this a truncated triangular number?

12 votes
14 answers
1k views

How many ways to write numbers as sums of squares?

6 votes
1 answer
119 views

Make the super number hyper-pyramid [duplicate]

11 votes
3 answers
969 views

Crazy but Rational Bases

12 votes
1 answer
474 views

Demolish a string!

24 votes
7 answers
942 views

Plant a binary forest!