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Q: How many 3 digit numbers can you make using only 1 and 2 using it as many times as you want?

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120 when you want to know something like that you multiply the digits together Ex. 12345-1 times 2 times 3 times 4 times 5=120

You can make 4*4*4 = 64 numbers.

8*7*6*5*4 = 6720 of them.

Related questions

55----------------------------------------------------------------------------------------------From Rafaelrz.You can make, 5! = 120, five digit numbers using 1,2,3,4 and 6.

10999

24

You can make 4*3*2/2 = 12 numbers.

106------------------------------------------------------------------------------------------------From Rafaelrz.You can make, 4P3 = 4!/(4-3)! = 24, different 3 digit numbers using 1, 2, 3 and 4.

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

3! = 6.

Using each digit only once, 5*4*3*2*1 = 120. Using the digits any number of times, 55 = 3125.

19 times10,11 (is 2),12,13,14,15,16,17,18,19,21,31,41,51,61,71,81 and 91

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