| End of Prior Universe time frame | Mass(black hole): super massive end of time BH 1.98910+41 to about 1044 grams | Number(black holes) 106 to 109 of them usually from center of galaxies |
| Planck era Black hole formation Assuming start of merging of micro black hole pairs | Mass(black hole) 10−5 to 10−4 grams (an order of magnitude of the Planck mass value) | Number(black holes) 1040 to about 1045, assuming that there was not too much destruction of matter-energy from the Pre Planck conditions to Planck conditions |
| Post Planck era black holes with the possibility of using Equation (2) to have say 1010 gravitons/second released per black hole | Mass(black hole) 10 grams to say 106 grams per black hole | Number(black holes) Due to repeated Black hole pair forming a single black hole multiple times 1020 to at most 1025 |