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:
“Thieves respect property. They merely wish the property to become their property that they may more perfectly respect it.”
—Gilbert Keith Chesterton (1874–1936)
“In this world, which is so plainly the antechamber of another, there are no happy men. The true division of humanity is between those who live in light and those who live in darkness. Our aim must be to diminish the number of the latter and increase the number of the former. That is why we demand education and knowledge.”
—Victor Hugo (1802–1885)