A prime number is a natural number greater than 1 which has only two factors, 1 & the number itself. Learn the definition, examples, lists, facts, & more.

Composite numbers can be arranged into rectangles but prime numbers cannot. A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural …

Sep 10, 2025 · Prime numbers are the basic building blocks of natural numbers. Every integer greater than 1 can be uniquely expressed as a product of primes, known as the Fundamental …

Jun 30, 2021 · Learn what a prime number is and see how to tell if a number is prime. Get a list of primes under 100 and 1000.

A Prime Number is: a whole number above 1 that cannot be made by multiplying other whole numbers. When it can be made by multiplying other whole...

What is a prime number? A prime number is a positive whole number that is only divisible by itself and 1. Prime numbers must be greater than one. Another way of saying this is that the only …

A prime number is any number that can be divided only by 1 and itself. For example, 3 is a prime number because the only numbers that divide it are 1 and 3. The number 4 is not, because it …

Oct 30, 2023 · Prime numbers are whole numbers that can’t be divided by any other whole numbers besides 1 and itself. The only factor of 1 is 1! That means 1 has only one factor, and …

A Prime Number is a special number that has only two factors: 1 and itself. That means it can only be divided evenly by 1 and the number itself — no other number works!

Learn about prime numbers with simple definitions, examples, interactive quizzes, and fun facts. Perfect for K-12 students building foundational math skills.