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Old 2021-09-19, 08:55   #1
jense 2185
 
Sep 2021

316 Posts
Minus (Not a) Formula for prime with 10^8 and 10^9 digits

X=3(9^Y) +1

(10^X -1) ÷ 4.5 + ((10^X ) ×7)+5

While Y=108 or While Y=109
Result is prime with 100,000,000 digits or 1,000,000,000 digits

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