Ulam Spiral .
Spiral origin at “0”.
Spiral origin color-coded as a 6-fold
“1” represented on spiral.
(Adjacent to “0”, “0” is a 6-fold.)
“2” & “3” not represented on spiral.
(Not adjacent to a 6-fold.)
Color-coded number-groups:
click below for show/no-show settings.
display control
6-folds
prime adjacents
composite adjacents
Spiral origin at “0”.
Spiral origin color-coded as a 6-fold
“1” represented on spiral.
(Adjacent to “0”, “0” is a 6-fold.)
“2” & “3” not represented on spiral.
(Not adjacent to a 6-fold.)
Color-coded number-groups:
click below for show/no-show settings.
display control
6-folds
lower prime adjacents
upper prime adjacents
lower composite adjacents
upper composite adjacents
