numbers ∕ four-digit numbers 60xxtable of four-digit numbers (digits) ⫽ 6000 ― 609960x060x160x260x360x460x560x660x760x860x96000600160026003600460056006600760086009601060116012601360146015601660176018601960206021602260236024602560266027602860296030603160326033603460356036603760386039604060416042604360446045604660476048604960506051605260536054605560566057605860596060606160626063606460656066606760686069607060716072607360746075607660776078607960806081608260836084608560866087608860896090609160926093609460956096609760986099
@ifckr.v.0.