# Is 156 a Prime Number?

Is 156 a prime number? * "No, 156 is not 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 233 with only 2 factors, i.e. 1 and 233 are called prime numbers. However, numbers like 237 with more than 2 factors are called composite numbers. Let us find out how and why is 156 a prime number or a composite number?

**Is 156 a prime number? -**No**Is 156 a composite number? -**Yes**Factors of 156 -**1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156**Prime Factors of 156 -**2, 3, 13**Is 156 a perfect square? -**No

## Is 156 a Prime Number?

No, 156 is not a prime number. The number 156 is divisible by 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156. For a number to be classified as a prime number, it should have exactly two factors. Since 156 has more than two factors, i.e. 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, it is not a prime number.

## Why is 156 not a Prime Number?

To understand whether 156 is composite or prime, it is important to find its factors.

**Factors of 156:** 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Since 156 has more than 2 factors, we can say that 156 is not a prime number.

## Is 156 a Composite Number?

Yes, since 156 has more than two factors i.e. 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156. In other words, 156 is a composite number because 156 has more than 2 factors.

**Problem Statements: **

Is 156 a Prime Number? | No |

Is 156 a Composite Number? | Yes |

Square of 156 | 24336 |

Is 156 a Perfect Cube? | No |

Is 156 an Odd Number? | No |

Is 156 a Perfect Square? | No |

Multiples of 156 | 156, 312, 468, 624, 780, 936, 1092, 1248, 1404, 1560 |

Cube Root of 156 | 5.383204 |

Is 156 an Even Number? | Yes |

Square Root of 156 | 12.489996 |

**Fun Facts: **

- A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (311, 313) are twin prime numbers.
- 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 palindrome prime is a prime number that when read in reverse order results in the same number. Examples - 10601, 11311, 12421

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