repeating digits

Interesting, multiples of 3 multiplied by 37 = repeating digits
(1×3) or 1+1+1=3 x 37 = 111
(2×3) or 2+2+2=6 x 37 = 222
(3×3) or 3+3+3=9 x 37 = 333
(4×3) or 4+4+4=12 x 37 = 444
(5×3) or 5+5+5=15 x 37 = 555
(6×3) or 6+6+6=18 x 37 = 666
(7×3) or 7+7+7=21 x 37 = 777
(8×3) or 8+8+8=24 x 37 = 888
(9×3) or 9+9+9=27 x 37 = 999

et 333667*3*x .......

5.5511151231257827021181583404541015625 × 10^-17=1/2^54 etc ....

999 = neuf fois neuf = 999 999 999