Question

Hallar la última cifra luego de efectuarse el producto.
P = (22004+ 1) (22003 + 1) (22002 + 1) (22001 + 1) . (22 + 1)
A) 4 B) 5 C) 7 D) 9 E) 6

Answer 1

$P = (22004+1)(22003+1)(22002+1)(22001+ 1)(22 + 1)$
$P=5391317446449926760$
ultima cifra cero