1/9 + 1/10...........from the harmonic series.....somewhat matches..all 4 sum to 26................7919.......7 + 9 = 16..............1 + 9 = 10.............16 + 10 = 26...........a cube has 6 sides......8 vertices......(like 68%)...........and 12 edges........26 in all.....iron??

7919 is 1000th prime - Prime Numbers

https://prime-numbers.info › Numbers › Number 7919

7919 is 1000th prime. It belongs into 3 classes. Such as Chen, Isolated primes.

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1000 Primes?

https://primes.utm.edu/lists/small/1000.txt

The First 1,000 Primes (the 1,000th is 7919) For more information on primes see http://primes.utm.edu/ 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 ...

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