In Chaldean numerology, the interplay between numbers is nearly as crucial as whether a number itself is deemed fortunate or unfavorable. The potency of favorable influence often finds itself notably restrained if, for instance, an individual possesses a fortunate number like 36 or 37 within their names, yet fails to align these numbers with others within their name or date.
Broadly speaking, numbers fall into two principal groups. Numbers from the 1-2-4-7 cluster typically either harmonize amongst themselves or maintain a more neutral stance in certain scenarios. Correspondingly, numbers belonging to the 3-6-8-9 spectrum generally exhibit a natural affinity for one another, save for the complex dynamics between 8 and 9.
At their core, the relationship between the 1-2-4-7 and 3-6-8-9 groups tends to be inherently discordant. While the number 5 may superficially seem compatible with all others, deeper analyses unveil incongruences, particularly with numbers 3 and 8. Moreover, associations with numbers 2 and 4 prove less than ideal for the number 5. The number 5 finds its best understanding in the company of another 5, while also forging strong bonds with 1 and 6. Individuals whose birthdates harbor the numbers 4 and 8 often necessitate a release from their vibrational burdens, a feat achievable through strategic selection of name numbers. Optimal choices include numbers 1 and 5 for 4, and numbers 3 and 6 for 8, while the number 15—although it sums to 6 (1+5=6)—is advised against.
The Mystery of Numbers, Luck, Worlds and Planets 