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Is 139 a Prime Number?

Is 139 a prime number? How do you know that 139 is prime or composite? Let us first understand what makes a number 'prime'. If a number has only 2 factors (1 and the number itself), then it is a prime number. If the number has more than 2 factors, then it is composite. Now, what do you think of 139? Is 139 a prime number? "Yes, 139 is a prime number." Since 139 has only 2 factors i.e. 1 and 139, it is a prime number. Let's study this in detail.

Is 139 a prime number? - Yes
Is 139 a composite number? - No
Is 139 a perfect square? - No
Factors of 139 - 1, 139
Prime Factors of 139 - 139

Yes, 139 is a prime number. The number 139 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 139 has exactly two factors, i.e. 1 and 139, it is a prime number.

Is 139 a Prime or Composite?

How is 139 a Prime Number?

To understand whether 139 is prime or composite, it is important to find its factors.

Factors of 139: 1, 139

Therefore, we can say that 139 is a prime number since it has only 2 factors.

☛ Prime Number Calculator

Is 139 a Composite Number?

No, since 139 has only two factors, i.e. 1 and 139. In other words, 139 is not a composite number because 139 doesn’t have more than 2 factors.

Problem Statements:

Is 139 a Prime Number?	Yes
Is 139 a Composite Number?	No
Multiples of 139	139, 278, 417, 556, 695, 834, 973, 1112, 1251, 1390
Is 139 an Even Number?	No
Is 139 a Perfect Cube?	No
Is 139 a Perfect Square?	No
Square Root of 139	11.789826
Cube Root of 139	5.180093
Is 139 an Odd Number?	Yes

Fun Facts:

Numbers X and Y are said to be coprime if they have only one common factor that is 1.
Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 89 is a prime number and it can be written as 89 = 6 × 15 - 1
A perfect cube is always a composite number.

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