# Telephone numbers

How many 7-digit telephone numbers can we put together so that each number consists of different digits?

## Correct answer:

Tips for related online calculators

Would you like to compute the count of combinations?

### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- Four-digit 65124

Please find out how many different four-digit numbers we can create from the digits 3 and 8 so that the two digits three and two digits eight are used in each four-digit number created. - Three digits number 2

Find the number of all three-digit positive integers that can be put together from digits 1,2,3,4 and which are subject to the same time has the following conditions: on one position is one of the numbers 1,3,4, on the place of hundreds 4 or 2. - Together 3331

The group has 12 red girls and 25 blue girls in costumes. How many of them can we put together a group of 6 girls so that the four girls have red outfits? - Three-digit 5226

How many different three-digit natural numbers can be created so that the digits are different and the last digit is 0?

- Divisible by five

How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? We can repeat the digits in the created number. - Phone numbers

How many 9-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated? - Three-digit 45361

How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? The numerals can be repeated in the created number.