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How much numbers does a credit card have?
Credit cards have a series of 14-16 digits, beginning with the numbers 3, 4, 5 or 6. American Express cards begin with 3 and have 15 digits. Diners Club and Carte Blanche (JCB) cards begin with 3 and have 14 or 16 digits. Visa cards begin with 4 and have 16 digits. (Old cards used to have 14 digits). Mastercard cards begin with 5 and have 16 digits. Discover cards begin with 6 (usually 6011) and have 16 digits.
When were two digit phone numbers in usage in Texas?
because the switches were hard-wired together and fairly hard to re-wire telephone exchange buildings in many larger cities in north America were dedicated circuits that begin with the first two or three digits of the standard 7 to the phone numbers .
When comparing two numbers should you begin comparing the digits from right to left?
Right because you start with the number that begins
How many numbers can you make from the digits 0 1 2 and 3?
24, of which 6 will begin with zero. Excluding these, gives 18.
How many 5-digit numbers can be constructed that both begin and end with the digit 3 and contain unlimited repetitions?
2
