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Schur cover of alternating group:A7


This group, termed the Schur cover of alternating group:A7 and sometimes denoted 6 \cdot A_7, is defined in the following equivalent ways:

  1. It is the unique quasisimple group with center cyclic group:Z6 and quotient group alternating group:A7.
  2. It is the Schur covering group of alternating group:A7.

Arithmetic functions

Want to compare and contrast arithmetic function values with other groups of the same order? Check out groups of order 15120#Arithmetic functions
Function Value Similar groups Explanation
order (number of elements, equivalently, cardinality or size of underlying set) 15120 groups with same order As the Schur covering group of A_6: order of Schur multiplier of A_7 (which is 6) times order of A_7 (which is 7!/2 = 2520)

GAP implementation

Description Functions used
SchurCover(AlternatingGroup(7)) SchurCover, AlternatingGroup
PerfectGroup(15120,1) PerfectGroup