To write an exponent on a laptop you would use the "^" key. For example, "3^2" would be "three squared."
64
9 cubes in exponent form = 93
104
2.2*101
1.11 × 102
101
One-thousandth, 1 x 10-3
You do not write numbers in exponent for in words.
23,709 = 2.3709 × 104
4000000 = 4*106
9.03 × 107
4.6 × 101