158 (one hundred [and] fifty-eight) is the natural number following 157 and preceding 159.

In mathematics

158 is a nontotient, since there is no integer with 158 coprimes below it. 158 is a Perrin number, appearing after 68, 90, 119.[1]

References

  1. ^ "Sloane's A001608 : Perrin sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
Allikas: https://en.wikipedia.org/wiki/158_(number)
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