[talanum1 (OP)]

I have discovered something amazing. For M_P^T = the first four or three digits of the particle P's mass in MeV (keV for e^-) we have:

or

where p is a prime. This works for P = τ^-, μ^-, e^-, π⁰, D⁰, ω, φ. It does not work for: K^+-, proton, π^+-, although K^+- and π^+- comes within 1 away from a prime.

[Bored chemist]

"Are Particle Masses Related to Prime Numbers?"
No.
Primes are integers, masses are generally irrational.