2 x 3 x 11 = 66
The number 11 is prime and has two identical digits.
11 is the only prime number with identical digits. After 11 all numbers with identical digits can be divided by atleast 11 or 3.
16 is a number that has four identical even factors.
A square number.
It's not entirely clear from the wording of your question what it is you want to know. Seven is a one-digit number. The sum of its digits is 7. Seven has two factors: 1 and 7. That sum is 8.
A prime number with identical digits is 11.
The number 11 is prime and has two identical digits.
11 is the only prime number with identical digits. After 11 all numbers with identical digits can be divided by atleast 11 or 3.
Consecutive identical digits could be digits that are the same and appear next to one another in a number. For example, the hundreds and tens digits in 1442 could be considered consecutive identical.
No
16 is a number that has four identical even factors.
The 2-digit multiples of 11 all have identical digits.
Try the different numbers - there are only 11 after all - and multiply their digits. Or analyze the factors of the number 21.
A number that has only one and itself as factors is a prime number and so therefore it can't have four other identical factors.
The different digits have different values.
A square number.
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