+128475 3465
The number cannot end in 5
The number will be divisible by 11 if the [ sum of the first and third digit ] - [ sum of second and fourth digit ] = 0
5346 ⇒ divisible by 11 3546 3456
5364 3564 ⇒ divisible by 11 3654
5436 4536 4356 ⇒ divisible by 11
5463 4563 4653 ⇒ divisible by 11
5634 6534 ⇒ divisible by 11 6354
5643 ⇒ divisible by 11 6543 6453
6 numbers
No calc please
