Is 671 a Prime Number?

Is 671 a prime number? "No, 671 is not 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 107 with only 2 factors, i.e. 1 and 107 are called prime numbers. However, numbers like 365 with more than 2 factors are called composite numbers. Let us find out how and why is 671 a prime number or a composite number?

• Is 671 a prime number? - No
• Is 671 a composite number? - Yes
• Is 671 a perfect square? - No
• Prime Factors of 671 - 11, 61
• Factors of 671 - 1, 11, 61, 671

Is 671 a Prime Number?

No, 671 is not a prime number. The number 671 is divisible by 1, 11, 61, 671. For a number to be classified as a prime number, it should have exactly two factors. Since 671 has more than two factors, i.e. 1, 11, 61, 671, it is not a prime number.

Why is 671 not a Prime Number?

To understand whether 671 is composite or prime, it is important to find its factors.

Factors of 671: 1, 11, 61, 671

Since 671 has more than 2 factors, we can say that 671 is not a prime number.

☛ Prime Number Calculator

Is 671 a Composite Number?

Yes, since 671 has more than two factors i.e. 1, 11, 61, 671. In other words, 671 is a composite number because 671 has more than 2 factors.

Problem Statements:

Fun Facts:

• Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 71 is a prime number and it can be written as 71 = 6 × 12 - 1
• A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (311, 313) are twin prime numbers.
• 2 is the smallest prime number.

☛ Also Check:

• Is 48 a Prime Number? - No
• Is 97 a Prime Number? - Yes
• Is 43 a Prime Number? - Yes
• Is 131 a Prime Number? - Yes
• Is 25 a Prime Number? - No
• Is 513 a Prime Number? - No
• Is 321 a Prime Number? - No
• Is 128 a Prime Number? - No