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EntityQ690992· pop 75· linked from 437 articles

91

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Also known as ninety one, ninety-one

natural number

AI overview

91 is a natural number that comes after 90 and before 92. It's notable because despite appearing to be prime at first glance, it's actually composite—equal to 7 multiplied by 13—making it a classic example used to illustrate that not all odd numbers are prime.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

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code: 133
Commons category: 91 (number)
numeric value: 91
number of decimal digits: 2

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~2 min read

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← 90 91 92 93 94 95 96 97 98 99 → List of numbers Integers

← 0 10 20 30 40 50 60 70 80 90 →

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