The mth prime 
is classified as “good” if 
for 
. For example, 5 is a good prime because 
is greater than 
and 
, but 7 is not because 
.
is classified as “good” if for . For example, 5 is a good prime because is greater than and , but 7 is not because . Write a function to list the first n good primes.
Solution Stats
Problem Comments
4 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers18
Suggested Problems
-
4192 Solvers
-
1249 Solvers
-
Factorions: Numbers that equal the sum of the factorials of their digits
83 Solvers
-
375 Solvers
-
Spot the First Occurrence of 5
436 Solvers
More from this Author328
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
In the description, k>=1
Thanks--fixed.
Why is 2 not a good prime? With m = 1, it trivially holds that p_m^2 > p_{m-k} p_{m+k} for all 1 \le k \le m-1 since this is in fact an empty statement then.
It's not included in the lists I've seen probably because there is no zeroth prime.