Sed et si, curiositate potius quam necessitate moti, velimus agnoscere utrum 14 sit multiplex 7, sumatur character ultimus semel............................................................................................4. et præcedens ter..........................................................................3.____
7.
Si summa est multiplex ipsius 7, erit et 14 multiplex 7, quare et 14, et 119, et 287542178.
Vis agnoscere quinam numeri dividantur per 6.
Scriptis, ut saepius dictum est, numeris naturalibus 1, 2, 3, 4, 5, etc., et 1 sub 1 posito,
| etc. | 4 | 3 | 2 | 1 | ||||
| etc. | 4 | 4 | 4 | 1, |
Ex 40 aufer 6, reliquum 4 sub 3 ponito,
Ex 40 aufer 6, reliquum 4 sub 4 ponito.
Et sic semper redibit 4, quod agnosci potuit ubi semel rediit.
Ergo, si proponatur numerus quilibet, de quo quærebatur utrum sit dividendus per 6, nempe 248742, sume ultimam ejus figuram semel...............................................................................2,
præcedentem quater....................................................................16,
præcedentem quater, etc. ...........................................................28,
et, uno verbo, primam semel, reliquarum verò.............................32,
summam quater...........................................................................16,
.............................................................................................8,____102.
