Is 2 is a prime number? Yes, 2 is a prime number. It is known that whole numbers can be classified into prime numbers or composite numbers based on the number of factors. In this article, we will discuss whether 2 is a prime number or a composite number.

Table of Contents

**Is 2 a Prime Number?**

A prime number has only two factors: 1 and the number itself. We know that the factors of a number are the divisors of the number.

Note that 2 is divisible by 1 and 2 only.

So the factors of 2 are 1 and 2.

∴ 2 is a prime number. Note that 2 is the smallest and only even prime number.

**Is 2 a Composite Number?**

It is known that a composite number has more factors other than 1 and the number itself. As 2 has only two factors: 1 and the number 2 itself, we deduce that

2 is not a composite number.

**Also Read: Is 11 a prime number**

**Nature of the Number 2**

- 2 is the smallest prime number
- 2 is the only even prime number
- 2 is an even number; but not an odd number
- 2 is the second natural number

**Facts about 2:**

Is 2 a prime number? | Yes, 2 is a prime number. |

Is 2 a composite number? | No, 2 is not a composite number. |

Square of 2 | 2^{2 }= 2×2 = 4 |

Square root of 2 | √2 = 1.414 |

Cube root of 2 | $\sqrt[3]{2}=1.2599$ |

Is 2 a perfect square? | As the square root of 2 is not a whole number, 2 is not a perfect square. |

Is 2 a perfect cube? | As the cube root of 2 is not a whole number, 2 is not a perfect cube. |

Is 2 an even number? | As 2 is divisible by 2, we deduce that 2 is an even number. |

Is 2 an odd number? | As 2 divides 2, the number 2 is not an odd number. |

Multiples of 2 | The first five multiples of 2 are 2, 4, 6, 8, and 10. |

Divisors of 2 | 1 and 2 |

Factors of 2 | 1 and 2 |

Prime factors of 2 | 2 is the only prime factor of 2 |

Prime divisor of 2 | 2 is the only prime divisor of 2 |

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## FAQs

**Q1: Is 2 a prime number or not?**

Answer: Yes, 2 is a prime number.

**Q2: Is 2 a composite number or not?**

Answer: No, 2 is not a composite number. It is a prime number.

**Q3: What is the smallest prime number?**

Answer: 2 is the smallest prime number.