This number is a prime.
Just showing those entries submitted by 'Silva': (Click here to show all)
The sum of digits of 43^(4+3) is 43. [Silva]
Can you see the three consecutive primes in 43=4*7+5*3? [Silva]
(There are 3 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell