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Old 2018-02-26, 19:06   #1
JM Montolio A
 
Feb 2018

5×19 Posts
Smile A great universal divisibility rule

for n= 76657.
Divider, Base, Pot, product
7, 10, 3, (7,6,6,5,7)*(81,27,9,3,1)= 7*115
47, 100, 6, (7,66,57)*(36,6,1)= 47*15
233, 1000, 68, (76,657)*(68,1)= 76*68+657*1= 233*25

Note
Pot = Base mod Divider.
Product is: the number on Base, MULTIPLIED BY, the powers of Pot.

The rule is: (Divider | N) sii (Divider | Product)

This rule is new. I think.

JM M
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