1. “DIGITAL Sums”

In analogy to “HexaDecimal” [6 & 10], the most accurate descriptor of applying ‘digital logic’ to the decimal number system would be “DigitoDecimal” [digit & 10].

However, I am aware of the complexity and novelty of concepts I am introducing with new terms. So let’s stick to “Digital Sums” to describe the sums of a decimal product and a decimal digit.

The arithmetic of “Digital Composition” has lead to interesting VISUAL patterns of prime numbers:

• outside [parallel to the outer digonals]

and inside the “Pyramid of Decimal Counting”:

and

• as “Digital Sums” on “parallel diagonals” in orthodiagonal Number Planes:
• Collection 15. The Ortho-Diagonal Nature of “Digital Sums”.

But VISUAL patterns are the result of NUMERICAL repetitions or similarities.

NUMERICALLY, “Digital Sums” reveal steps of:

• ±10 vertically
• ±1 horizontally
• ±11 diagonally
• and a remarkable preponderance of Prime Numbers:

NEXT: “2. Digital RATIOS”