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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 smallest two digit number is 00 (a number used as a wire gauge) and the largest is 99, so the difference between the largest and smallest 2-digits numbers is 99 (99 - 00)
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
9876 (:
The largest ten digit number with no repeated digits is '9876543210'.
The smallest two digit number is 00 (a number used as a wire gauge) and the largest is 99, so the difference between the largest and smallest 2-digits numbers is 99 (99 - 00)
> 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
987653
You get the largest number if you sort the digits, from largest to smallest.
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