Introduction
In the state of mathematics, “what is prime number in mathematics” is actually an explanation in Urdu of what a Prime Number is. This article has been specially designed for Urdu speakers so that they can not only understand the definition but also know the examples, properties, and applications — in a completely human way, without any unnatural sentences.
Definition of Prime Number

A prime number or prime number is a natural number that has only two positive divisors: 1 and the number itself. That is, it cannot be divided exactly by any number greater than two. It should be noted that the number 1 is not called a prime number, because it has only one divisor (i.e. itself).
Examples
2 is a prime number, because its divisors are only 1 and 2.
3 is also a prime number, with divisors: 1 and 3.
5, 7, 11, 13, 17, 19, etc. are all prime numbers.
But 4 is not a prime number, because 4 = 2 × 2 (i.e., 2 divides twice).
Similarly, 6 is a composite number, because 6 = 2 × 3.
Properties of prime numbers
- Two divisors — Every prime number has only two divisors: 1 and itself.
- 1 is not a prime number — As mentioned above, 1 has only one divisor, so it is not a prime number.
- 2 is the smallest prime number — it is the only even prime number, all other prime numbers will be odd.
- Unique Factorization — Every number >1 is either a prime number itself, or can be written as a unique product of prime
what is prime number in mathematics
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Primality Test
If you want to know whether a number is real or not, the following methods can be used:
Conclusion
The aim of the article was to explain “what is prime number in mathematics” in an easy way for Urdu readers. The definition, examples, properties, methods of verification, and applications of prime numbers (singular numbers) are discussed. If you want, you can improve this article for a blog post, website, or school notes — by adding images, infographics, and more examples.
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