1849
This number is a composite.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
The largest known square-semiprime that is the sum of the first n odd primes
(3+5+7+...+127+131=1849). [Bajpai]
The smallest square that is the sum of first n Sophie
Germain primes (2+3+5+11+...+239+251=1849). [Bajpai]
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