title: 241 (number)
text: # 241 (number)
  
  241 (two hundred [and] forty-one) is the natural number between 240 and 242. It is also a prime number.
  
  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 × $2^4$ + 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).
  
  