Sure. Any 1-digit number contains only one-digit numbers as factors. Any larger number, on the other hand, contains itself as a factor, so these can be excluded.
1,2,23 and 46 are the only even factors of 46 so this is impossible
6 is the only single digit perfect number.
81 is.
No. A digit is a single number from 0 to 9
1 [trivially], 2, 3, 4, 5, 6, and 7.
One through nine all have single digit factors.
Well, honey, single digit factors of a number are just the numbers that can divide into that number without leaving a remainder. So, for example, the single digit factors of 12 are 1, 2, 3, 4, and 6. It's like finding out who's invited to the party before you start breaking out the cake.
1, 2, 4, 5, 8
2100
1, 2, 3, 4, 6, 7
1, 2, 3, 4, 6, 8
Sure. Any 1-digit number contains only one-digit numbers as factors. Any larger number, on the other hand, contains itself as a factor, so these can be excluded.
As a product of its prime factors in exponents it is: 22*3*52*7 = 2100
1, 2, 3, 4, 6, 8, 9.
1
1 is a single digit, 0 is the absence of a digit.