Question

The number of 4 digit numbers with no two digits common is

Answer 1

Hello Friend ✌
Here is u r Ans ➡

✨= 9 x 9 x 8 x 7 = 4536. Therefore there are 4,536 number of four digit numbers which are not repeated are there.
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Answer 2

HeY !!

9×9×8×7 = 4536

this is the 4 digit number which are not repeated are there