What is 2 to the power of 6?
You can literally punch this into a calculator but...
2^6 = 2 * 2 * 2 * 2 * 2 * 2 = 64
26 = 2*2 * 2*2 * 2*2 = 4*4 * 4 = 16 * 4 = 64
+1491 +1491 
