# How many combinations does a 7 digit number have?

## How many combinations does a 7 digit number have?

There are 720 different combinations for a seven-digit number.

## How many combinations can 5 numbers make?

The number of 5-digit combinations is 10 5=100,000. So, one more than 99,999. You can generalize that: the number of N-digit combinations is 10 N.

What are the 7 digit numbers?

The greatest 7-digit number is 99,99,999. The smallest 6-digit number is 1,00,000. Their difference is 99,99,999-1,00,000 = 98,99,999. The predecessor of 98,99,999 is the number that comes just before it, and it is 98,99,998.

### How many combinations are there in a 10 digit number?

If repetition is allowed, then the number of permutations of 10 digits is 10,000,000,000. If repetition is not allowed, then the number of permutations of 10 digits is 3,628,800.

### How to find the possible number of combinations?

Method 2 of 2: Calculating Combinations with Repetition Consider an example problem where order does not matter but repetition is allowed. In this kind of problem, you can use the same item more than once. Plug in your values for n {\\displaystyle n} and r {\\displaystyle r}. Solve the equation to find the number of combinations. You can do this either by hand or with a calculator.

What is the smallest 5 digit number?

The smallest 5 digit number is 10000. Divide 10000 by 240 to get 41.6666666. Take the next higher integer which is 42. Now multiply 240 by 42 to get 10080, which is the smallest 5 digit number divisible by 6, 8, 15, 16, and 20.

#### How to count number of combinations?

Select whether you would like to calculate the number of combinations or the number of permutations using the simple drop-down menu

• Enter the total number of objects (n) and number of elements taken at a time (r)
• Select whether repeat elements are permitted
• separated by commas (optional)
• #### How many 5 digit numbers are odd?

There are 90,000 5 digit odd numbers. 45,000 positive ones and 45,000 negative ones.