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In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler. A repunit prime is a repunit that is also a prime number.
My house number is 11 which is a repunit.
by Manadar March 23, 2009
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Words related to repunit:

digit number prime repeating repunits