powermod(x,i,N)
i1 : powermod(2,3,10) o1 = 8
i2 : powermod(2,4,10) o2 = 6
i3 : powermod(2,30000,100000) o3 = 9376
i4 : powermod(2,30000,100000000000000000000) o4 = 35833790694215909376
i5 : powermod(2,3331333,3331333) o5 = 2
The object powermod is a compiled function.