That depends upon how the circles are located and the relationship between the numbers that are placed in the circles; unless the circles just happen to make a number, for example:
..............
..O.O.O....
..........O..
........O....
......O......
....O........
is a 7 regardless of what digits are placed in the circles.
1
Any number that has 4 or 5 digits. A digit in a number is one number place. 1 has 1 digit, 11 has 2 digits, 111 has 3 digits, and so on.
1 googol = 10100 = '1' followed by 100 zeroes. The number has (1 googol + 1) digits.
There are two digits in the binary number system. 0 and 1
1862...2573...3941
1
1 + 1 = 2 The sum of the digits is therefore 2.
The largest prime number that has 4 digits and begins with a 1 is 1,999.
1
Ten digits= 1 billion
Any number that has 4 or 5 digits. A digit in a number is one number place. 1 has 1 digit, 11 has 2 digits, 111 has 3 digits, and so on.
1 googol = 10100 = '1' followed by 100 zeroes. The number has (1 googol + 1) digits.
There are two digits in the binary number system. 0 and 1
1862...2573...3941
The highest number you can make out of the digits 2 4 0 and 1 is 4210.
In the numbers 1-9 each number has 1 digit and there are 9 of them, so that's 9.In 10-99 each number has 2 digits, and there are 90 of them: 2x90 = 180There are 900 three digit numbers [100 through 999]: 2700 digits.There are 9000 four digit numbers: 36000 digits.90,000 numbers with five digits: 450,000 digits.900,000 numbers with six digits: 5,400,000 digits.Then 1 number with seven digits: 7 digits.Add them up and you have 5,888,896 digits.
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.