In mathematics, a Cullen number is a natural number of the form n ยท 2n + 1 (written Cn). Cullen numbers were first studied by Fr. James Cullen in 1905. Cullen numbers are special cases of Proth numbers.
Read more about Cullen Number: Properties, Generalizations
Famous quotes containing the words cullen and/or number:
“While glow the heavens with the last steps of day,
Far, through their rosy depths, dost thou pursue
Thy solitary way!”
—William Cullen Bryant (1794–1878)
“Among a hundred windows shining
dully in the vast side
of greater-than-palace number such-and-such
one burns
these several years, each night
as if the room within were aflame.”
—Denise Levertov (b. 1923)