241 242 → Factorization 241 Roman numeral CCXLI | Cardinal two hundred forty-one Prime twin prime | |
Ordinal 241st
(two hundred and forty-first) |
241 (two hundred [and] forty-one) is the natural number between 240 and 242. It is also a prime number.
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In mathematics
241 is the larger of the twin primes (239, 241). Twin primes are pairs of primes separated by 2.
241 is a regular prime and a lucky prime.
Since 241 = 15 × 24 + 1, it is a Proth prime.
241 is a repdigit in base 15 (111).
241 is the only known Lucas–Wieferich prime to (U, V) = (3, −1).
In Chemistry
Americium-241 is the most common isotope of Americium, used in smoke detectors.
In popular culture
References
241 (number) Wikipedia(Text) CC BY-SA