(29, XXIX) is the natural number
and preceding thirty
. It is the tenth prime number
, and also a primorial prime
, the next prime number as well as primoral prime being thirty-one
, with which it comprises a twin prime
. Twenty-nine is also the sum of three squares, 22
. It is a Lucas number
and a Pell number.
The lunar month is very close to twenty-nine days.
Twenty-nine is also
See also: twenty-seven
, list of numbers
This article is about the number. For the year AD 29, see 29.