
Curios:
Curios Search:
Participate: 
The only threedigit prime repfigit number. [Trotter] 197 and 2^{197} * 197#  1 are primes. [Boland] The first three digits of the prime 197 * 197! + 1 are 197. [Luhn] Surrey and England batsman Jack Hobbs scored a record 197 centuries. The sum of the first dozen primes. [Brod] The smallest prime number that is the sum of 7 consecutive prime numbers (17+19+23+29+31+37+41). [Schuler] 197 is the sum of digits of all twodigit primes. [Gallardo] The smallest multidigit prime p that makes 10^p9 prime. Note that the next prime (199) has the same property. They are twin primes! [Gallardo] This prime is the smallest number to be the sum of repdigits of its digits: 111 + 9 + 77 = 197. [Post] The sum of the squares of all the four composite digits (4^2 + 6^2 + 8^2 + 9^2). [Silva]
(There are 7 curios for this number that have not yet been approved by an editor.)
Prime Curios! © 20002018 (all rights
reserved)
privacy statement
