Prime Number Calculator

Number
Result

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Prime Number Calculator can determine whether a given number is a prime and also compute its previous and next prime number.

What it the "Prime Number"?

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. In other words, a prime number can only be divided evenly (without any remainder) by 1 and the number itself. For example, the numbers 2, 3, 5, 7, 11, and 13 are all prime numbers.

Here are some key points about prime numbers:

  • 2 is the smallest prime number and the only even prime number.

  • Every other prime number is odd.

  • There are infinitely many prime numbers; this fact is known as the infinitude of primes.

  • Prime numbers are fundamental in number theory and have various applications in cryptography and computer science.

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Antipode Calculator

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Sunlight Times Calculator can calculate sun times for a given date, latitude/longitude, and the observer's height (in meters) relative to the horizon. It is an indispensable tool for anyone interested in understanding or predicting the exact times of sunrise and sunset for any location on Earth.