112 or 1.21 × 102 or (1 x 102) + (2 x 101) + (1 x 100)
7,777 can be written as 7.78 × 103 using exponents.
112 = 121
112 = 121
112 = 121
121 = 11 * 11 = 112
121 = 112
80 is in expanded form. Using exponents, it should be written as 8x10^1 OR 0.8x10^2.
27 can be written as 2.70 × 101
210, 45, 322 using integer exponents. But it can also be written as 10485760.5 or 162.5
powers, or exponent
No, none of the factors are repeated.
10.10 million = 1.01*107