12, 13, 14, 21, 31, 41: 6 if repetition is not allowed.
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.
16000
5040 numbers can be made.
There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.
A 12-digit number is any whole number that contains exactly 12 digits, ranging from 1,000,000,000,000 (the smallest 12-digit number) to 9,999,999,999,999 (the largest 12-digit number). Examples of 12-digit numbers include 123456789012, 987654321000, and 100000000001. These numbers can represent anything from large financial figures to identification numbers.
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.
16000
Choose from 4 for the first number, 3 for the second number, and 2 for the third number. Therefore there are 4*3*2 = 24 three digit numbers can be formed from 3769 if each digit is used only once.
5040 numbers can be made.
Since both of those numbers contains four digits, there are no three-digit numbers between them.
There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.
A 12-digit number is any whole number that contains exactly 12 digits, ranging from 1,000,000,000,000 (the smallest 12-digit number) to 9,999,999,999,999 (the largest 12-digit number). Examples of 12-digit numbers include 123456789012, 987654321000, and 100000000001. These numbers can represent anything from large financial figures to identification numbers.
To determine how many digit numbers can be formed using the digits 2, 3, 5, 7, and 8, we need to consider the number of digits in the numbers we are forming. For a 1-digit number, we can use any of the 5 digits. For a 2-digit number, we can choose 2 out of the 5 digits and arrange them, giving us (5 \times 4) combinations. We can continue this for 3-digit, 4-digit, and 5-digit numbers, which will yield (5), (20), (60), and (120) respectively. Therefore, the total number of digit numbers is (5 + 20 + 60 + 120 = 205).
3
There are 2000 such numbers.
Only four numbers:20233032
It is 120 if the digits cannot be repeated.