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  1. import math
  2. m=int(input())
  3. for i in range(0,m):
  4.     s=int(input())
  5.     pro=1
  6.     big=0
  7.     li= input().split()
  8.     li=[int(u) for u in li]
  9.     for l in range(0,s):
  10.         pro*=li[l]
  11.     pro+=1    
  12.     for j in range(2,int(math.sqrt(pro))+1):
  13.             if pro%j==0:
  14.              big=pro//j
  15.              break
  16.     if big==0:
  17.         big=pro
  18.     print("Case #",i,":",big)
  19.  
  20.  
Success #stdin #stdout 0.02s 28384KB
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stdin
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2
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2 3 5
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2 7 5 11
stdout
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Case # 0 : 31
Case # 1 : 257
https://ideone.com/OAt2HS
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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