it means there are 15 places after the decimal point
The exponent is 2 - from the SECOND power.
2 x 5^2 = 50
2^50 is 1.125899907*10^15 in scientific notation
50 squared is 50^2
In the number 25 the exponent is 5. Whereas, 2 is the base.
A negative exponent is 1 over the base to the power of the absolute value of the exponent. For example 2 to the power of -1 is 1/2, 2 to the power of -2 is 1/4, or (1/2) squared, and 2 to the power of -3 is 1/8, or (1/2) cubed.
2 x 52
An exponent is the power that a number is raised to. For instance, in the expression 3^2 ("three squared"), 2 is the "exponent" and 3 is the "base." A positive exponent just means that the power is a positive number. For instance, the following expression does not involve a positive exponent: 3^(-2). Horses rule!!!!!
It is 2 and power of 5
2 times 5 exponent of 2
It is the power of a number as for example 82 whereas 2 is the power or exponent and it means 8*8 = 64
The ^ is used as the exponent character. So you can do 10^2. There is also a function to do it called POWER: =POWER(10,2)