This is a base 8 multiplication. A well known French name is the key.
L O T I
R A V I
-----------
* * * * T
L * * * *
* * * * I
O * * * *
-----------------
L * * * E * O T
The key is
VOLTAIRE
12345678
3 2 4 6
X 7 5 1 6
But the rest of the puzzle seems to be wrong
Edited on April 20, 2024, 12:16 am