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Assuming you mean the 13 digit bar code and by "combinations" the mathematical permutations, then there are 1012 different bar codes - the 13th digit is a check digit based on the other 12.

On the 8 digit bar code there are 107 different bar codes - the 8th digit is a check digit based on the other 7.

"Combination" has a specific meaning in maths:

Permutations are sets arranged in order whereas Combinations are sets where order does not matter.

So for the six sets:

{1, 2, 3}, {2, 3, 1}, {3, 1, 2}, {1, 3, 2}, {2, 1, 3}, {3, 2 1}

they are different permutations of the digits 1, 2 & 3 (as the order changes each time) but the same combination (as each set contains one 1, one 2 and one 3 in some order).

The same is true of the six numbers: 123, 231, 312, 132, 213, 321

They are different permutations of the three digits 1, 2 & 3 but the same combination of them - each number contains one 1, one 2 and one 3.

Q: What is the number of bar code combinations?

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If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.

The answer is five factoral (5!) which is 120.

You can make 5 combinations of 1 number, 10 combinations of 2 numbers, 10 combinations of 3 numbers, 5 combinations of 4 numbers, and 1 combinations of 5 number. 31 in all.

There are 6C3 = 20 such combinations.

This question needs clarificatioh. There are 4 one digit number combinations, 16 two digit combinations, ... 4 raised to the n power for n digit combinations.

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One bar code can have anywhere from 30 to 70 different combinations within itself. How many combinations are in the world is not known.

16861 86558 That's the bar code at the back

673419144735

Since a bar code represents a number, and an image can be expressed digitally as a series of number, a conventional bar code ( with sufficient length ) can store images, as well as any other type of digital information.

depending on what "HOW MANY" means ... how many digits in one barcode or how many combinations can there be... ^^ specify pls.

It is a barcode but I don't know it.

No!

burr

The number of combinations is the number of characters - in this case, 10 - raised to the power if the number of places. So using only the numerals zero through nine, and a 10-character PIN, there are 10 raised to the tenth power combinations, or 1,000,000,000 different possibilities.

If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.

Usually at the bottom of a card with the bar-code.

check digit