A 13 x 13 Prime Number Interval Square

Barry Dalgarno

9 March 2024               

                        

Dedicated to my mother Ruth Dalgarno



A 13 x13 prime number interval square.

Consecutive prime numbers 1228399 to 1228567.

Interval sequence 30-12-16-2-30-12-18-18-4-2-4-20.

In the figure shown, the unfilled circles along the square diagonal (horizontal) represent consecutive prime numbers, and the smaller filled circles represent the non-primes occupying the prime intervals.