This is an automatically generated page and cannot be edited directly. Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.

Exit this popup by pressing <Escape>, or clicking on X or on the background.

expmod
Combined from primary sources listed below.

In Int§

See primary documentation in context for routine expmod 

multi        expmod(      $x,     $y,     $mod --> Int:D)
multi        expmod(Int:D $x, Int $y, Int $mod --> Int:D)
multi method expmod(Int:D:    Int $y, Int $mod --> Int:D)

Returns the given Int raised to the $y power within modulus $mod, that is gives the result of ($x ** $y) mod $mod. The subroutine form can accept non-Int arguments, which will be coerced to Int.

say expmod(4, 2, 5);    # OUTPUT: «1␤»
say 7.expmod(2, 5);     # OUTPUT: «4␤»

$y argument can also be negative, in which case, the result is equivalent to ($x ** $y) mod $mod.

say 7.expmod(-2, 5);     # OUTPUT: «4␤»