diff options
Diffstat (limited to 'factors/type.go')
| -rw-r--r-- | factors/type.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/factors/type.go b/factors/type.go index 33c48bd..91eb94e 100644 --- a/factors/type.go +++ b/factors/type.go @@ -41,7 +41,10 @@ var superabundantNums = [...]uint64{ 6133685312708553600, 9200527969062830400, 18401055938125660800, } -// A type of number (as determined by its factors) +// A classification of numbers, based on how many factors they have. +// Each type is a subset of the next (except [Practical] and [NotPractical]), +// so a number is only counted as its most exclusive type. +// The zero value of this type is invalid. type NumberType byte const ( @@ -64,6 +67,7 @@ const ( NotPractical NumberType = 0x40 ) +// Type determines the [NumberType] of a number. func Type(n uint) NumberType { if slices.Contains(colossallyAbundantNums[:], uint64(n)) { return ColossallyAbundant |