Septenary

Septenary system (also known as base 7) heptenary or septimal, is a number system has seven as its base.

 Base 7 number system 
Base 7 number system is also called as septimal.

 64 (is 121)
 65 (is 122)
 66 (is 123)
 67 (is 124)
 68 (is 125)
 69 (is 126)
 70 (is 130)
 71 (is 131)
 72 (is 132)
 73 (is 133)
 74 (is 134)
 75 (is 135)
 76 (is 136)
 77 (is 140)
 96 (is 165)
 100 (is 202)
 101 ( is 203)

Category:Numbering systems