title: E number (disambiguation)
text: # E number (disambiguation)
  
  An E number is a food additive code.
  
  E number or E code may also refer to:
  
  * e (mathematical constant), the base of the natural logarithm
  * 14 (number), the number represented by hexadecimal "E"
  * International E-road network, a numbering system for roads in Europe
  * External Cause of Injury Codes, codes used to define the mechanism of death or injury; see List of ICD-9 codes E
  * E-numbers in physics, the elements of a Clifford algebra in Arthur S. Eddington's "fundamental theory"
  