3

Summary

3 is a prime number^[1]. 3 draws 1,690 Wikipedia views per month (prime_number category, ranking #4 of 5).^[2]

Key Facts

• 3's instance of is recorded as prime number^[3].
• 3's instance of is recorded as Mersenne prime^[4].
• 3's instance of is recorded as Fermat number^[5].
• 3's instance of is recorded as triangular number^[6].
• 3's instance of is recorded as positive integer^[7].
• 3's instance of is recorded as odd number^[8].
• 3's instance of is recorded as Fibonacci prime^[9].
• 3's instance of is recorded as Fibonacci number^[10].
• 3's instance of is recorded as Cantor number^[11].
• 3's instance of is recorded as Mersenne number^[12].
• 3's instance of is recorded as near-square prime^[13].
• 3's instance of is recorded as factorial prime^[14].
• 3's instance of is recorded as power of three^[15].
• 3's instance of is recorded as harshad number^[16].
• 3's instance of is recorded as primorial prime^[17].
• 3's instance of is recorded as Euclid number^[18].
• 3's instance of is recorded as Fermat prime^[19].
• 3 followed 2^[20].
• 3 was followed by 4^[21].
• 3's Commons category is recorded as 3 (number)^[22].
• 3's said to be the same as is recorded as triad^[23].
• 3's said to be the same as is recorded as 03^[24].
• 3 is the opposite of −3^[25].
• 3 is the opposite of ⅓^[26].
• 3's Unicode character is recorded as 3^[27].

Body

Definition and Type

Recorded instance of include prime number^[3], Mersenne prime^[4], Fermat number^[5], triangular number^[6], positive integer^[7], and odd number^[8]. Recorded opposite of include −3^[25] and ⅓^[26].

Use and Application

3's used by is recorded as cube^[28].

Influence

Things named for 3 include Telangana^[29], a state of India^[30], in India^[31], founded in 2014^[32]; Iron Man 3^[33], a film^[34], directed by Shane Black^[35]; Wednesday^[36], a day of the week^[37]; Tuesday^[38], a day of the week^[39]; Late Triassic^[40], a series^[41]; Early Triassic^[42], a series^[43]; Middle Triassic^[44], a series^[45]; and triumvir monetalis^[46], a position^[47], in Ancient Rome^[48].

Why It Matters

3 draws 1,690 Wikipedia views per month (prime_number category, ranking #4 of 5).^[2] 3 has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.^[49] 3 is known by 66 alternative names across languages and contexts.^[50]

Entities named for 3 include Telangana^[29], a state of India^[30], in India^[31], founded in 2014^[32]; Iron Man 3^[33], a film^[34], directed by Shane Black^[35]; Wednesday^[36], a day of the week^[37]; Tuesday^[38], a day of the week^[39]; Late Triassic^[40], a series^[41]; and Early Triassic^[42], a series^[43].