Is 14 a Prime Number?
2026-02-28 11:25 Diff
https://brightchamps.com/en-us/math/numbers/is-14-a-prime-number

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Last updated on August 5, 2025

Prime numbers are special because they only have two divisors: 1 and themselves. We see them closer to the home, just in ATM pins. From here we start playing with prime numbers, and the reason 14 isn’t a prime.

Is 14 a Prime Number?

14 is not a prime number. But according to what we are saying, why is it not a prime number? Let's understand that, firstly, the number set is of two parts:

  • Prime number

And using one of the methods we're going to introduce you to, we will find that indeed 14 is not a prime.


 

Why Is 14 Not a Prime Number?

We could find that a number is prime if it has 2 factors only, 1 and the number itself, and only 2 divisors. It means that a number, not satisfying these conditions, cannot be a prime number.


However, there are pretty simple methods to determine whether a number is prime or not:

  • Count Divisor Method
  • Divisibility Test
  • Prime Number Table
  • Prime Factorization
     

Using the Counting Divisors Method

The name implies: We’re counting how many divisors a given number has, and then saying that number is prime. It is easy to learn. With that said, let’s see what steps are there in this method.

  • First is to count how many the number holds in divisors.
  • We can then see that 14 has more than 2 divisors: 1,2,7 and 14.


We can see that number 14 has 4 divisors. Thus, we see that it doesn’t fulfill the criteria needed for a prime number. And so it is not a prime number.
 

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Using the Divisibility Test Method

In this case, we'll see if 14 can be divided into any other number. Now if it gets divided then that is not a prime number. So let’s check for 2,3,5 and 7.

  • Since 14 is an even number, we can say that 14 is divisible by 2.
  • Since the sum of the digits is 5,5 is not divisible by 3 as 5 is not a multiple of 3. 
  • 14 is not ending with a 0 or 5. Therefore, it is not divisible by 5.
  • To see if 14 is divisible by 7, we can use a simple trick. First, we look at the last digit, which is 4. We double that 4 (4 × 2 = 8) and then subtract it from the other digit, which is 1. So, we do 8 – 1 = 7. Since 7 is a multiple of 7, that means 14 is divisible by 7.


We know 14 can be divided by two of the above-mentioned numbers, therefore it is not a prime number.
 

Using Prime Number Chart

Here, we will be using a chart that will contain all the prime numbers between 1 and 100. If the given number appears in the list, it is not a prime number. 
 

We can see that 14 does not appear here. So, it is not a prime number

Using the Prime Factorization Method

We use this method of breaking large numbers into small numbers, then checking the factors. It works only for composite numbers. 


The factors of 14 are 2 and 7. Since there are more than two factors for 14, we can not title 14 a prime number.
 

Common Mistakes to Avoid When Determining if 14 is Not a Prime Number.

As we check if 14 is a prime number or not, there are some common mistakes that children make that might lead them to giving wrong answers. Let us take a look at these mistakes:
 

FAQs On “Is 14 a Prime Number?”

1.What are the factors of 14?

The four factors of 14 are 1,2,7 and 14.
 

2.What is 14 divisible by?

 14 is divisible by 7 and 2 exactly.
 

3.Does 14 have 3 factors?

14 has four factors if you include itself. They are 1,2,7 and 14.

4.Is 420 divisible by 14?

 Yes, 420 is divisible by 14. 

5. Is there a divisibility rule for 14?

Important Glossaries for "Is 14 a Prime Number"

  • Prime Number Chart- A list of prime numbers, often used to quickly determine if a number is prime by checking if it appears in the list.
  • Composite number: The number which possesses more than 1 factor is named as composite number. Like, example- 18 is factored into 2×32, thus it is a composite number.
  • Divisors- A number that divides another number and leaves no remainder is called divisors.For example, 4/2=2. Here, 2 is a divisor, as it divides 4 exactly and leaves no remainder.
  • Co-prime Numbers: These numbers have a GCF of 1.
     

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Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.

Fun Fact

: She loves to read number jokes and games.