Is 691 a Prime Number?

Accepted Solution

Solution: 691 is a prime number Methods Is 691 a prime number? Let us begin by defining what a prime number is: a prime number is a number that is divisible by only itself and 1. Since we see that 691 has only two factors, 1 and 691, then we can come to the conclusion that 691 is a prime number . Another way you can look at the problem is by the factors of 691. By no coincidence, 691’s factors are just 1 and 691 (only just itself and 1), which is the definition of a prime number. Find out if these other numbers are prime too or not! When it comes to prime numbers, it’s best to learn about them through experience - so why not have a look and find out if any of these numbers are prime or not? Is 3622 a Prime Number? Is 867 a Prime Number? Is 2151 a Prime Number? Is 2682 a Prime Number? Is 245 a Prime Number?