241 (number)
Natural number / From Wikipedia, the free encyclopedia
This article is about the number. For the year, see 241. For other uses, see 241 (disambiguation).
For uses of the phrase "two for one", see Two for one.
241 (two hundred [and] forty-one) is the natural number between 240 and 242. It is also a prime number.
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Quick Facts ← 240 241 242 →, Cardinal ...
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Cardinal | two hundred forty-one | |||
Ordinal | 241st (two hundred forty-first) | |||
Factorization | prime | |||
Prime | twin prime | |||
Greek numeral | ΣΜΑ´ | |||
Roman numeral | CCXLI | |||
Binary | 111100012 | |||
Ternary | 222213 | |||
Senary | 10416 | |||
Octal | 3618 | |||
Duodecimal | 18112 | |||
Hexadecimal | F116 |
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241 is the larger of the twin primes (239, 241). Twin primes are pairs of primes separated by 2.
241 is a regular prime[1] and a lucky prime.[2]
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).