Where can I find information about this nucleon mass coincidence?

[stephen193]

TL;DR

mP - 3·Δm = mN - 4·Δm = 934,392,091.08 eV/c^2

I can't possibly be the first to notice this numerical coincidence, but my search skills are inadequate to find information about it, and I was hoping others could point me toward papers on the subject.

Neutron mass, mN: 939565420.52 (54)
Proton mass, mP: 938272088.16 (29)
[https://physics.nist.gov/cgi-bin/cuu/CCValue?mnc2mev|ShowSecond=neutron+mass+in+MeV&First=mpc2mev]

Δm = mN - mP = 1,293,332.36
mP - 3·Δm = 934,392,091.08
mN - 4·Δm = 934,392,091.08

What's going on, there?

 

[Frabjous]

Try replacing Δm with mN-mP in the equations

 

[stephen193]

Ah, got it. Thanks!