987653
9876 is the largest four digit number you can make if all the digits must be different.
The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753.
9876543
The largest ten digit number with no repeated digits is '9876543210'.
9,876
9876 is the largest four digit number you can make if all the digits must be different.
The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753.
9876543
The largest ten digit number with no repeated digits is '9876543210'.
9876 (:
> 9999876 Actually, 9999876 has four different digits (6, 7, 8, 9). The largest 7-digit number with three different digits is 9999987.
9999876
9,876
The largest number with no repeated digits is 9,876,543,210 although it is 10 digits long, the largest 3 digit number with no repeated digits is 987
The largest ten digit number with no repeated digits is '9876543210'.
If repeated digits are allowed, then the largest 12-digit number is 999,999,999,999 .If repeated digits are not allowed, then the largest 12-digit number is 989,898,989,898 .If the same digit can't be used more than once, then the largest possible number has only10 digits. The number is 9,876,543,210 .
The largest 10-digit number with no digit repeated is 9876543210 !