Monday, September 20, 2010
331
331
is a prime number.
331
is a divisor of 31
3
- 1.
331
is a
centered pentagonal number
and a
centered hexagonal number
(hex number).
331
is
good
,
happy
,
lucky
, and
cuban
.
The Best
331
Colleges
by Robert Franek was published by Princeton Review in 2002.
Source:
Prime Curios!
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