The Standard Cipher

I like the Standard or English Extended Cipher because of its similarity those of the ancient languages. Here I've applied it to my name leaving out my middle name which is rarely used except in official documents:

Source

This number (\( \textbf{761}\)) is prime with the following properties:

• it is an emirp because \(167\) is prime
• it is a 4\(k\)+1 prime such that \(761=19^2+20^2\)
• it is a Sophie Germain prime since \(761 \times 2 + 1 = 1523\) is prime
• it is the \(20\)th-centered square number
• it can be rendered as a digit equation: \(7 = 6+1\)

My birth name is also prime (\( \textbf{733}\)) with the following properties:

• it is an emirp because \(337\) is prime
• it is a 4\(k\)+1 prime such that \(733 = 2^2 + 27^2\)
• it is a balanced prime because it is an equal distance from the previous prime \(727\) and the next prime \(739\)
• it is a right truncatable prime since \(733 \rightarrow 73 \rightarrow 7 \)

Source

John Reeves was my name for the first 25 years of my life but from age 26 onwards I was known as Sean Reeves. These two personal primes, \( \textbf{733}\) and \( \textbf{761}\), can be added to the two other personal primes of mine related to my date of birth. These are \( \textbf{3449} \) (3rd of the 4th 49 is what I would say back in the day when asked for my date of birth) and the condensed form of this number: \( \textbf{349}\).

I've written about this topic, Gematria, in two earlier posts, specifically:

• Gematria in Greek and Arabic Languages
  
• Days of the Year and Gematria