Is 2009 a Prime Number?

Is 2009 a prime number? Numbers having only 2 factors, i.e. 1 and the number itself are known as prime numbers whereas numbers with more than 2 factors are known as composite. The answer to the question whether 2009 is a prime or composite is - "2009 is a composite number." Now, let us find out how and why is 2009 a prime number or a composite number?

• Is 2009 a prime number? - No
• Is 2009 a composite number? - Yes
• Prime Factors of 2009 - 7, 41
• Factors of 2009 - 1, 7, 41, 49, 287, 2009
• Is 2009 a perfect square? - No

Is 2009 a Prime Number?

No, 2009 is not a prime number. The number 2009 is divisible by 1, 7, 41, 49, 287, 2009. For a number to be classified as a prime number, it should have exactly two factors. Since 2009 has more than two factors, i.e. 1, 7, 41, 49, 287, 2009, it is not a prime number.

Why is 2009 not a Prime Number?

To understand whether 2009 is prime or composite, it is important to find its factors.

Factors of 2009: 1, 7, 41, 49, 287, 2009

Since 2009 has more than 2 factors, we can say that 2009 is not a prime number.

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Is 2009 a Composite Number?

Yes, since 2009 has more than two factors i.e. 1, 7, 41, 49, 287, 2009. In other words, 2009 is a composite number because 2009 has more than 2 factors.

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Fun Facts:

• 5 is the only prime number having the last digit as 5.
• A palindrome prime is a prime number that when read in reverse order results in the same number. Examples - 10601, 11311, 12421
• Numbers X and Y are said to be coprime if they have only one common factor that is 1.

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