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Q: How many different four-digit numbers can you make using the digits 2 4and 6?

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89,999 different numbers i guess

If the digits are all different then 18. Otherwise, 192.

2222

99999

You have seven different digits (symbols) to choose from, so you can form seven different one digit numbers and 7×7=72=49 different two digit numbers.

It is possible to create infinitely many numbers, of infinitely many different lengths, using the digits of the given number. Using each of the digits, and only once, there are 5! = 120 different permutations.

Base two is also referred to as the binary number system.In the decimal system we use 10 different digits (0 to 9) to represent numbers. However, all numbers in binary consist of a combination of only 2 different digits; a "0" and/or a "1".All numbers can be represented using only these 2 digits.

You can select 9 numbers for the first digit, 8 numbers for the second digit, and 7numbers for the third digit; so 504 (e.g. 9*8*7) different three digit numbers can be written using the digits 1 through 9.

60

10+23 = 33

Standard form

depends on your answer

With base one million, you can create one nonillion different numbers; using the traditional decimal (base ten) system, you can form 100 thousand different numbers.

If they can be repeated, 343 different numbers. If they can be used once each, there are only 210.

24 different numbers.

There are 60480 numbers.

There are 26 different letters that can be chosen for each letter. There are 10 different numbers that can be chosen for each number. Since each of the numbers/digits that can be chosen for each of the six "spots" are independent events, we can multiply these combinations using the multiplicative rule of probability.combinations = (# of different digits) * (# of different digits) * (# of different digits) * (# of different letters) * (# of different letters) * (# of different letters) = 10 * 10 * 10 * 26 * 26 * 26 = 103 * 263 = 1000 * 17576 = 17,576,000 different combinations.

0000 0001 0002 ... 9998 9999

There are 3*2*1 = 6 of them.

Using the digits of 1345678, there are 210 three digit numbers in which no digit is repeated.

If you want 4-digit numbers, there are 24 of them.

9,999,876 is the greatest seven-digit number using four different digits.

There are 4^6 = 4096 such numbers.

There are 3,265,920 numbers that can be formed using all the digits. The answer to the question will depend on which one of these.

6 possible 3 digit combonations