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.
Assuming that the first digit can't be zero: If repetition of digits is permitted: (5 x 6 x 6) = 180 numbers of 3 digits. If repetition of digits is not permitted: (5 x 5 x 4) = 100 numbers of 3 digits.
10,000
There are three digits: 4, 5, and 1.
120
192 ways
(4)5 = 1,024
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.
There are 2 significant digits: 5 and 4
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.
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.
An exponent means "this many times." So, 4 cubed (to the power of 3; a 3 exponent.) is 4 NOT times 3, but 3 TIMES. So it is 4x4x4(=64). Or, 5 to the power of 5 is 5 times itself 5 times, so, 5x5x5x5x5(=3,125). 3 to the power of 9 is 3 times itself 9 times. Basically, the exponent tells how many times you multiply the number by itself. Does that help?