In recreational mathematics, a Keith number or repfigit number (short for repetitive Fibonacci-like digit) is a number in the following integer sequence:
- 14, 19, 28, 47, 61, 75, 197, 742, 1104, 1537, 2208, 2580, ....
Keith numbers were introduced by Mike Keith in 1987. They are computationally very challenging to find, with only about 100 known.
Read more about Keith Number: Introduction, Definition, Finding Keith Numbers, Examples, Keith Clusters
Famous quotes containing the words keith and/or number:
“The honest poor can sometimes forget poverty. The honest rich can never forget it.”
—Gilbert Keith Chesterton (1874–1936)
“Take away from the courts, if it could be taken away, the power to issue injunctions in labor disputes, and it would create a privileged class among the laborers and save the lawless among their number from a most needful remedy available to all men for the protection of their business interests against unlawful invasion.... The secondary boycott is an instrument of tyranny, and ought not to be made legitimate.”
—William Howard Taft (1857–1930)