9 4 4 3 2
I would make a guess at 2 to the power (3 to the power (4 to the power (4 to the power 9))) but I haven't checked it.
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
99,997
97632 is the largest number containing these digits. To make the largest number simply order the numbers in descending order. As it happens this results in an even number so nothing further is necessary.
98765
With repetition, the smallest is 22222 and the largest is 88888 Without repetition, the smallest is 23458 and the largest is 85432
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
99,997
97632 is the largest number containing these digits. To make the largest number simply order the numbers in descending order. As it happens this results in an even number so nothing further is necessary.
98765
With repetition, the smallest is 22222 and the largest is 88888 Without repetition, the smallest is 23458 and the largest is 85432
99874To solve this type of problems, you go from left to right, using the largest possible digit in every case.
The only number that ONLY has two and five as factors is 10, which has two digits, so there are no numbers that are three digits long and ONLY have two and five for factors. However, if you are asking what the largest three digit number that has two and five for factors, it would be the largest three digit number with ten as a factor, as ten the the LCM of two and five, and that would be 390.
The largest 5-digit number divisible exactly by 99 is 99990.
Five digits.
99997
94205 if digits are not to be repeated and 99999 if digits can be repeated
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.