# Introduction to Prime Numbers

I. What is a Prime Number? A number is called prime if it satisfies all the following conditions: is a natural number, greater than 1, has only 2 divisors: 1 and itself. For example, are the first prime numbers. If so, what is NOT a prime number? not a natural number (e.g. a fraction, like or ), less than or equal to 1 (e.g. -3, 0, 1 are NOT prime), can be formed by multiplying 2 natural numbers less than itself (e.g. is NOT a prime number). II. Why is Prime Number important? In the modern world, prime numbers are … Continue reading Introduction to Prime Numbers