How to Find Prime Numbers?

Elementary Math (K-6th) Tutorial

How to Find Prime Numbers?

Intro

Prime numbers are numbers that can be divided by 1 and itself. 1 is not a prime number since it is only divided by 1. It has to have only two factors. For example, 8 is not a prime number because it has more than two factors. We call this a composite number, which has more than two factors, which includes 1 and by itself as factors as well. There are infinite numbers of prime numbers or numbers that go on forever. Trying to choose which one is a prime number is like draining water from the pasta.

Sample Problem

What are the numbers from 1 to 100 are actually prime numbers?

Solution

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97



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