With repeats: 55 = 3125
Without repeats: 5 x 4 x 3 x 2 x 1 = 120
95
45
24680 using only even numbers or 12346 which is an even number
All five digit numbers have three digits. The smallest five digit whole number is 10,000
There are only five distinct odd digits.
95
45
There are 5460 five digit numbers with a digit sum of 22.
24680 using only even numbers or 12346 which is an even number
65390,93650,69530,
All five digit numbers have three digits. The smallest five digit whole number is 10,000
There are only five distinct odd digits.
It is 120 if the digits cannot be repeated.
625. Here's how:There are five odd digits {1,3,5,7,9} so our numbers will be made using only these digits. This is the same number of possibilities as if you had a base 5 number system where the allowed digits are {0,1,2,3,4}. For a 1 digit base-5, there are 5 possibilities, for a two digit base-5 there are 5² = 25 possibilities, so for a 4-digit, there are 5^4 = 625possible. This is the same number you will have with only using odd digits.
None. Nine digit number cannot be formed using only five digits 1,2,3,4,5 in the case none of the digits can repeat. -------- Egad! I misread the question, apologies to the questioner. And thanks to Miroslav.
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
99,997