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# How many 7 numbers combinations can you make from 1 2 3 4 5 6 7 and you can use multiple combinations but still use each number only once?

Updated: 9/22/2023

Wiki User

10y ago

Not sure what "multiple combinations means.

There is only one 7-number combination and that is 1234567 or 1357642 or any one of the other permutations.

Wiki User

10y ago

Earn +20 pts
Q: How many 7 numbers combinations can you make from 1 2 3 4 5 6 7 and you can use multiple combinations but still use each number only once?
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### What are the 5 numbers combinations you can make from the numbers 1 to 5 and you can use multiple combinations but still use each number only once?

The five that immediately come to mind (and I assume you are looking for) are: 12345 23451 34512 45123 51234 However, these are not the only combinations available as demonstrated below. Note: This just a representative sampling and is not all inclusive. 21345 23145 23415 13245 13425 13452

### How many 5 numbers combinations can you make from the numbers 1 to 49 and you can use multiple combinations but still use each number only once?

If the 1, 2, 3, 4 and 5 each appear in the numbers (no repeats, no eliminations-- so numbers like 11133 are not valid) then there are 120 combinations. If you can use any of the 5 any number of times up to a max of 5 times, (any possible way of making a 5 digit number using only 1, 2, 3, 4 and 5, so that 33455 for example is valid) then the number of combinations is 3125. The 3125 combinations include the 120 combinations above. This is a permutation of 5 objects, that can be thought of as an arrangement or a rearrangement of the five numbers. The number of permutations of this 5 numbers is equal to 5!. 5! = 5 x 4 x 3 x 2 x 1 = 120 ways. Or you can use the graphing calculator to compute 5!, such as: Press 5, MATH, with the right arrow go to PRB, press 4 (for !), ENTER.

### What is a greatest common multiple?

There is no such number. The LEAST COMMON MULTIPLE (LCM) is the smallest number that is a multiple of both numbers (or all numbers in a set). It is used to make common denominators. The GREATEST COMMON FACTOR (GCF) is the largest number that is a factor of both numbers (or all numbers in a set). It is used to reduce fractions to simplest form.

### What are two pairs of numbers with the given number as their greatest common multiple 8?

There is really so such thing as a "greatest common multiple." Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### Can there be a greatest common multiple for two numbers?

Yes there can be.* * * * *No, there cannot!There is really so such thing as a "greatest common multiple." Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### What is the greatest common multiple for any two numbers?

There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### Can two whole numbers have a greatest common multiple?

No, there is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### What numbers have 90 as a greatest common multiple?

There is really no such thing as a "greatest common multiple". Once you find the least common multiple (LCM) of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### What is the greatest common multiple of 85 and 51?

There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

### What is the largest number that is both a multiple of 4 and 5?

There is really no such thing as a largest multiple. Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.