This number is a prime.
Single Curio View: (Seek other curios for this number)The smallest prime formed by concatenating in order four successive semiprimes, i.e., 134, 141,142 and 143. Curiously all four semiprimes contain one digit 4. [Gupta]
Submitted: 2019-03-20 13:21:33; Last Modified: 2019-03-20 13:46:53.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell