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8 is the sixth Fibonacci number and the first even, non-prime Fibonacci number. It is also the only positive Fibonacci number aside from 1 that is a perfect cube. 8 is the third refactorable number, as it has exactly four positive divisors, and 4 is one of them.
- eight
- 8th, (eighth)
- 2³
- octal
noun. the cardinal number that is the sum of one and seven and the product of two and four See also number. a numeral, 8, VIII, etc, representing this number. music the numeral 8 used as the lower figure in a time signature to indicate that the beat is measured in quavers.
In mathematics, the number eight is an even number and a composite number. Eight is also a power of two, being 2 times itself 3 times. Category: Integers.
- eight
- 8th, (eighth)
- 2³
- octal
1. : a number that is one more than seven see Table of Numbers. 2. : the eighth in a set or series. the eight of spades. 3. : something having eight units or members: such as. a. : an 8-oared racing boat or its crew. b. : an 8-cylinder engine or automobile. eight adjective. eight pronoun, plural in construction. Examples of eight in a Sentence.
Your guide to the number 8, an even composite number. It is composed of one prime number multiplied by itself two times. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.
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Definitions of eight. noun. the cardinal number that is the sum of seven and one. synonyms: 8, VIII, eighter, eighter from Decatur, octad, octet, octonary, ogdoad. see more.
The number 8 is generally considered to be an auspicious number by numerologists. The square of any odd number, less one, is always a multiple of 8 (for example, 9 − 1 = 8, 25 − 1 = 8 × 3, 49 − 1…
