The only "direct hits" are Washington, D.C. (202) and Portland, OR (971).
Illinois gets a "close, but not quite" for 618, which has 618xx ZIP Codes around Urbana, IL, just to the north of area code 618.
Iowa gets a "CBNQ" for 515: area code 515 = Des Moines, ZIP Code 515 = Council Bluffs.
Florida comes close for 321, with ZIP Code 321 for Astor, FL, just north of area code 321.
California has several where the ZIP Code prefix and area code are in the same state, but not in the same part of the state. For example, AC 925 = Walnut Creek/ZIP 925 = Riverside. Also, if there were any ZIP Codes beginning with 909, they would be somewhere in Southern California, near AC 909.
In Wisconsin, area code 534 is Eau Claire and the northern part of the state, while ZIP 534 is Racine.
In Missouri, area code 636 is St. Charles, and ZIP Code 636 is Cape Girardeau. Area code 660 in northern MO (excl. KC,MO) is close to Kansas City, KS, suburbs (ZIP 660).
11 is the only prime number with identical digits. After 11 all numbers with identical digits can be divided by atleast 11 or 3.
27
A prime number with identical digits is 11.
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.
The number 11 is prime and has two identical digits.
Well, 47 49 51 53 are four consecutive odd numbers those total squared has for identical digits. 40000.... The square root of any number that is only four digits long all containing the same digit has a value that is not an integer.
Visa begins with 4 16 digits Master " " 5 " Discover " " 6 " Amex " " 3 15 digits
Right because you start with the number that begins
The 2-digit multiples of 11 all have identical digits.
The largest prime number that has 4 digits and begins with a 1 is 1,999.
10 digits are numbers in the billions.
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.