Learn and practise recognising number 2! Help the Numberblocks discover number 2 in this fun BBC Bitesize Reception Maths guide. Nevada Highway Patrol releases details, victim identities in crash that killed two in Yerington 2 hrs ago A West Arabic numeral, ultimately from Indic numerals (compare Devanagari २ (2)), from a cursive form of two lines to represent the number two. See 2 § Evolution for more. Watch Numberblocks full episodes on BBC iPlayer: Subscribe for more Numberblocks: to c. The number two (2) is the second positive integer and the first prime number. It is even, and is the only even prime (the primes other than 2 are called the odd primes). The number 2 is also equal to its factorial since 2!=2. A quantity taken to the power 2 is said to be squared. Discover the fascinating world of the number 2, its meanings, facts, religious significance, angel number interpretations, and its role in arts and literature. The number 2 is the second natural number, after 1. Each natural number, including 2, is constructed by succession, that is, by adding 1 to the previous natural number. In a nutshell 2 is unique – it’s the only prime that’s an even number. Like all primes, it has no other factors apart from itself and one. The glyph currently used in the Western world to represent the number 2 traces its roots back to the Brahmin Indians, who wrote 2 as two horizontal lines. (It is still written that way in modern Chinese and Japanese.) The number 2 is an even number because it is divisible by 2 without a remainder. Even numbers follow the pattern 2, 4, 6, 8. and can be written in the form 2 × n, where n is an integer.