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Is 311 a Prime Number?

Is 311 a Prime Number? "Yes, 311 is a prime number." A number can be classified as prime or composite depending on the factors it contains; it could either have only 2 factors or more than 2 factors. Numbers like 271 with only 2 factors, i.e. 1 and 271 are called prime numbers. However, numbers like 471 with more than 2 factors are called composite numbers. Let us find out how and why is 311 a prime number?

Is 311 a prime number? - Yes
Is 311 a composite number? - No
Factors of 311 - 1, 311
Prime Factors of 311 - 311
Is 311 a perfect square? - No

Yes, 311 is a prime number. The number 311 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 311 has exactly two factors, i.e. 1 and 311, it is a prime number.

Is 311 a Prime or Composite?

How is 311 a Prime Number?

To understand whether 311 is composite or prime, it is important to find its factors.

Factors of 311: 1, 311

Therefore, we can say that 311 is a prime number since it has only 2 factors.

☛ Prime Number Calculator

Is 311 a Composite Number?

No, since 311 has only two factors, i.e. 1 and 311. In other words, 311 is not a composite number because 311 doesn’t have more than 2 factors.

Problem Statements:

Is 311 a Prime Number?	Yes
Is 311 a Composite Number?	No
Is 311 a Perfect Cube?	No
Is 311 an Even Number?	No
Square Root of 311	17.635192
Cube Root of 311	6.775156
Is 311 a Perfect Square?	No
Multiples of 311	311, 622, 933, 1244, 1555, 1866, 2177, 2488, 2799, 3110
Is 311 an Odd Number?	Yes

Fun Facts:

All primes except 2 are odd.
A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (41, 43) are twin prime numbers.
All prime numbers don't have the last digit as 5 except the number 5.

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