Saturn's magic square is defined by numbers 1,2,3,...,9 arranged in such a way that their marginal sums equal to 15, i.e.,

4 9 2 15
3 5 7 15
8 1 6 15
15 15 15 45

The magic constant, 15, as well as the number 45 are triangular numbers, i.e., numbers that can be represented by a regular geometric arrangement of equally spaced points. Triangular numbers can be thought of as the numbers of dots you need to make a triangle:

Triangular numbers are found in the third diagonal of the Pascal Triangle

Cabalists thought that the Saturn's magic square is an instrument of devil. They came to this conclusion by inventing an illogical algebraic operation, namely that a number can be partitioned into its component digits that are additive. In the case of the Saturn's magic square:

4 9 2 15 consists of 1 and 5
3 5 7 15 consists of 1 and 5
8 1 6 15 consists of 1 and 5
15 consists of 1 and 5 15 consists of 1 and 5 15 consists of 1 and 5

45

By applying this operation to the number 15

4 9 2 1 + 5 = 6
3 5 7 1 + 5 = 6
8 1 6 1 + 5 = 6
1 + 5 = 6 1 + 5 = 6 1 + 5 = 6

45

By applying this operation to the number 15,
they converted the margins of the Saturn's magic square
into the devil's favorite number, 666:

4 9 2 6
3 5 7 6
8 1 6 6
6 6 6 45