The formula to calculate the Personality Number is:
\[ \text{Personality Number} = (\text{sum of the numerical values of all the consonants in the full name}) \% 9 \]
Where:
A Personality Number, in the field of numerology, is a digit derived from the consonants of a person’s full birth name. This number is believed to represent the outer personality, or the aspects of oneself that are presented to the world, including one’s appearance, demeanor, and the general impression one makes on others. It is calculated by assigning numerical values to the consonants in the name, adding them up, and then reducing the sum to a single-digit number through a process called digit summing. The Personality Number is thought to reveal how one interacts with others, how they are perceived, and what characteristics they project. It is one of the core numbers in a person’s numerology chart, along with the Life Path Number, Expression Number, and Soul Urge Number.
Let's assume the following name:
Consonants: J, h, n, D
Using the values:
Sum = 1 + 8 + 5 + 4 = 18
Personality Number = 18 % 9 = 0 (which is considered 9 in numerology)
The Personality Number is 9.