Powers of 10 (Positive)
1 = 100 (any number raised to the zero power is equal to one).
10 = 101 = 1 x 10 (any number raised to the first power is equal to itself.)
100 = 10 x 10 = 102 = 1 x 102 (all are equivalent)
1000 = 10 x 100 = 10 x 10 x 10 =103 = 1 x 103 (etc. for large numbers)
1,000,000,000,000 = 1012 = 1 x 1012 (trillion) (12 zeros => 12th power of ten)