Janko group J4

In the area of modern algebra known as group theory, the Janko group J4 is a sporadic simple group of order

   221 · 33 · 5 · 7 · 113 · 23 · 29 · 31 · 37 · 43
= 86775571046077562880
≈ 9×1019.
For general background and history of the Janko sporadic groups, see Janko group.
Algebraic structure → Group theory
Group theory
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Group homomorphisms
Finite groups
Classification of finite simple groups
Modular groups
  • PSL(2, )
  • SL(2, )
Topological and Lie groups
Infinite dimensional Lie group
  • O(∞)
  • SU(∞)
  • Sp(∞)
Algebraic groups
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