# Is 43 a Prime Number?

Is 43 a Prime Number? * "Yes, 43 is a prime number."* A number can be classified as prime or composite depending on the factors it contains; it could either have only 2 factors or more than 2 factors. Numbers like 1103 with only 2 factors, i.e. 1 and 1103 are called prime numbers. However, numbers like 260 with more than 2 factors are called composite numbers. Let us find out how and why is 43 a prime number?

**Is 43 a prime number? -**Yes**Is 43 a composite number? -**No**Factors of 43 -**1, 43**Is 43 a perfect square? -**No**Prime Factors of 43 -**43

## Is 43 a Prime Number?

Yes, 43 is a prime number. The number 43 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 43 has exactly two factors, i.e. 1 and 43, it is a prime number.

## How is 43 a Prime Number?

To understand whether 43 is composite or prime, it is important to find its factors.

**Factors of 43:** 1, 43

Therefore, we can say that 43 is a prime number since it has only 2 factors.

## Is 43 a Composite Number?

No, since 43 has only two factors, i.e. 1 and 43. In other words, 43 is not a composite number because 43 doesn’t have more than 2 factors.

**Problem Statements: **

Is 43 a Prime Number? | Yes |

Is 43 a Composite Number? | No |

Is 43 a Perfect Square? | No |

Is 43 a Perfect Cube? | No |

Multiples of 43 | 43, 86, 129, 172, 215, 258, 301, 344, 387, 430 |

Is 43 an Odd Number? | Yes |

Square Root of 43 | 6.557439 |

Cube Root of 43 | 3.503394 |

Is 43 an Even Number? | No |

**Fun Facts: **

- Euler discovered a polynomial n
^{2}+ n + 41 that produces prime numbers for values of n that lie between 0 and 39 inclusive. It can generate 40 prime numbers for 0 <= n <= 39. - A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (107, 109) are twin prime numbers.
- 1 is neither prime nor composite.

**☛ Also Check: **

- Is 119 a Prime Number? - No
- Is 11 a Prime Number? - Yes
- Is 45 a Prime Number? - No
- Is 6 a Prime Number? - No
- Is 28 a Prime Number? - No
- Is 437 a Prime Number? - No
- Is 601 a Prime Number? - Yes
- Is 611 a Prime Number? - No