Likewise, analogues of three-dimensional icosahedral symmetry 
  
    
      
        
          
            I
          
          
            h
          
        
      
    
    {\displaystyle \mathrm {I} _{h}}
   or  four-dimensional 
  
    
      
        
          
            H
          
          
            4
          
        
      
    
    {\displaystyle \mathrm {H} _{4}}
   symmetry do not exist in dimensions n ⩾ 5; however, there is the uniform prismatic group 
  
    
      
        
          
            H
          
          
            4
          
        
      
    
    {\displaystyle \mathrm {H} _{4}}
   × 
  
    
      
        
          
            A
          
          
            1
          
        
      
    
    {\displaystyle \mathrm {A} _{1}}
   in the fifth dimension which contains prisms of regular and uniform 4-polytopes that have 
  
    
      
        
          
            H
          
          
            4
          
        
      
    
    {\displaystyle \mathrm {H} _{4}}
   symmetry.
See also
Five Families
Five Nations (disambiguation)
555 (number)
List of highways numbered 5

References
Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 58–67

External links
 Media related to 5 (number) at Wikimedia Commons
 The dictionary definition of five at Wiktionary
The Number 5
The Positive Integer 5
Prime curiosities: 5