Alphanumeric, also called alphameric, is the set of letters of the alphabet and numeric characters from 0 through 9. It is a term used to describe any subset formed from this collection of symbols. Alphanumeric is also regarded as the combination of Latin letters and Arabic digits.
Know MoreThe term alphanumeric does not include punctuation and mathematical symbols. It is commonly used as the required format in creating passwords and file names. The string of characters “aBc123” is alphanumeric, but “#s?34T” is not.
Alphanumeric characters in the POSIX/C locale consist of either 36 case-insensitive symbols (A-Z and 0-9) or 62 case-sensitive characters (A-Z, a-z and 0-9).
Learn more in NumbersAll prime numbers are odd except for the number two. A prime number is defined as any whole number greater than one that has no positive divisors except for one and itself. Since two can only be divided by the numbers one and two, it is prime.
Full Answer >Compatible numbers are simple or simply added numbers with close values to more difficult numbers, substituted in their place for ease of calculation. An example would be substituting 15 and 3 when trying to multiply 14.8 and 2.6.
Full Answer >There are two sets of Korean numbers: the native Korean system and the Sino-Korean or Chinese system. The native numbers are used to identify items fewer than 100 and to indicate age. The Chinese-based numbers are used to designate time, money, addresses, phone numbers and numbers greater than 100.
Full Answer >Rational numbers are numbers that can be expressed as the ratio of two integers, whereas irrational numbers cannot be expressed as a ratio of integers. Irrational numbers expressed as decimals generate an unending series of numbers after the decimal point that never falls into a repeating pattern.
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