There are 4 digits in 1024
One way to view the exponent, especially when it is a natural number, is how many times something need to be multiplied by itself. So 4^5 has exponent 5 and base 4 and it means 4 multiplied by itself 5 times, ie 4x4x4x4x4 We can then extent this to negative integers and to an exponent of zero and then to rational exponents. More on that if you want to know.
To form a four-digit number without repeating any digits from 56789, we need to choose 4 different digits out of the 5 available. This can be done in 5 choose 4 ways, which is equal to 5! / (4! * (5-4)!) = 5 ways. Therefore, there are 5 four-digit numbers that can be formed out of 56789 without repeating any digits.
Possible 5 digit combinations using 5 digits only 1 time is 5! or 5*4*3*2*1 or 120. Using 5 digits where numbers can be used 5 times is 55 or 3125.
10,000
The number of different 4-digit strings is 6*5*4*3 = 360
There are three digits: 4, 5, and 1.
192 ways
120
There are 2 significant digits: 5 and 4
(4)5 = 1,024
There are only 4 prime digits: 2, 3, 5 and 7.There are only 4 prime digits: 2, 3, 5 and 7.There are only 4 prime digits: 2, 3, 5 and 7.There are only 4 prime digits: 2, 3, 5 and 7.
One way to view the exponent, especially when it is a natural number, is how many times something need to be multiplied by itself. So 4^5 has exponent 5 and base 4 and it means 4 multiplied by itself 5 times, ie 4x4x4x4x4 We can then extent this to negative integers and to an exponent of zero and then to rational exponents. More on that if you want to know.
You move the decimal point to the left - by as many digits as the absolute value of the exponent, e.g., if the exponent is -5, you move the decimal digit 5 positions to the left.
5^4
Convertible string := <significand><exponent> <significand> := [<sign>]<digits>[.<digits0>] <exponent> := E[<sign>]<digits0> <sign> := { + | - } <digits> := <digit><digits0> <digits0> := <digit>* <digit> := { 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 }
4*5*5 = 100 if digits can be repeated. 4*4*3 = 48 if not.
4^5 5 is the exponent.