Table numbers

Method names of long numbers used to denote extent of ten (the number of zeros after the unit). There is a long and short system names numbers. In Europe, mostly use the long system names.

Used short system, but a billion called a billion.

ten
STO
a thousand
million
billion
billion
Billiards
trillion (quintillion)
sextillion
septillion

Mersenne primes

Prime numbers Fermat

Known Farm:

Simple numbers-twins

Factoral simple

2, 3, 5, 7, 23, 719, 5 039, 39 916 801, 479 001 599, 87 178 291 199.

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