Googology Wiki
Advertisement
Googology Wiki

161 is the number following 160 and preceding 162.[1], and its factors are {1,7,23,161}.


Properties

  • It is an odd number[2].
  • The 161th element has not been discovered.


Approximations

Notation Expression
Up-arrow notation 12 ↑ 2
Fast-growing hierarchy f1(80)
Hardy hierarchy Hω(80)
Middle-growing hierarchy m(ω,7)


Sources

Advertisement