User:ColorfulGalaxy/Sandbox

This is the sandbox. There will probably be another one as this can get too big.

1	4
1 4 4	4 4 1
1 1 1 1	4 4 4 4
1 2 2 2	2 2 2 2
1 2 1 2 0 2 1 2 1	1 2 1 2 3 2 1 2 1	1 4 4 4 0 0 4 0 0	5 1 4 1 4 4 4 4 1
1 1 1 1 4 4 4 4 4 4 4 4	4 4 4 4 4 4 4 4 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1	4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

from math import pi
p=pi
print(int(p),end=' ')
p-=int(p)
for i in range(14):
 p*=7
 print(int(p),end=' ')
 p-=int(p)

Pi in septenary: 3 0 6 6 3 6 5 1 4 3 2 0 3 6 1 http://oeis.org/A004606

153 and 1077 are not prime. 1077×7+3 is even, thus not prime.

Pi in tetradecimal: 3 1 13 10 7 5 12 13 10 8 1 3 7 5 2 http://oeis.org/A068439

43 is prime. 615 is not prime.

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