z=->x,y{r=1;y.times{r=x*r%M};r}
M=10**9+7
E=Hash.new{|h,k|h[k]=[]}
N,K=gets.split.map &:to_i
IO.popen('factor '+gets){|io|
	io.each{|line|
		line.split[1..-1].map(&:to_i).group_by{|e|e}.each{|k,v|E[k]<<v.size}
	}
}
r=1
E.each{|k,v|r=r*z[k,v.sort_by{|e|-e}.take(K).reduce(:+)]%M}
p r