A day full of math games & activities. Find one near you.

Is 557 a Prime Number?

Is 557 a prime number? How do you know that 557 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 557? Is 557 a prime number? "Yes, 557 is a prime number." Since 557 has only 2 factors i.e. 1 and 557, it is a prime number. Let's study this in detail.

Is 557 a prime number? - Yes
Is 557 a composite number? - No
Factors of 557 - 1, 557
Prime Factors of 557 - 557
Is 557 a perfect square? - No

Yes, 557 is a prime number. The number 557 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 557 has exactly two factors, i.e. 1 and 557, it is a prime number.

Is 557 a Prime or Composite?

How is 557 a Prime Number?

To understand whether 557 is composite or prime, it is important to find its factors.

Factors of 557: 1, 557

Therefore, we can say that 557 is a prime number since it has only 2 factors.

☛ Prime Number Calculator

Is 557 a Composite Number?

No, since 557 has only two factors, i.e. 1 and 557. In other words, 557 is not a composite number because 557 doesn’t have more than 2 factors.

Problem Statements:

Is 557 a Prime Number?	Yes
Is 557 a Composite Number?	No
Square Root of 557	23.600847
Cube Root of 557	8.227808
Multiples of 557	557, 1114, 1671, 2228, 2785, 3342, 3899, 4456, 5013, 5570
Is 557 a Perfect Cube?	No
Is 557 a Perfect Square?	No
Is 557 an Odd Number?	Yes
Is 557 an Even Number?	No

Fun Facts:

A perfect cube is always a composite number.
Numbers X and Y are said to be coprime if they have only one common factor that is 1.
23 is the smallest prime number having consecutive digits.

☛ Also Check: