Is 57 A Prime Or Composite Number? - Cuemath

Is 57 a Prime Number?

Is 57 a prime number? A prime number is divisible only by 1 and itself, which means it has no other divisor except 1 and the number itself. On the contrary, composite numbers have more than two factors. To determine if 57 is a prime number or composite, we need to divide it with numbers from 1 to 57. To find out the answer to this question "is 57 is a prime number" and to gain a detailed understanding of "how and why is 57 a prime number or a composite number?" Let's learn more.

• Is 57 a prime number? - No
• Is 57 a composite number? - Yes
• Is 57 a perfect square? - No
• Factors of 57 - 1, 3, 19, 57
• Prime Factors of 57 - 3, 19

Is 57 a Prime Number?

No, 57 is not a prime number. The number 57 is divisible by 1, 3, 19, 57. For a number to be classified as a prime number, it should have exactly two factors. Since 57 has more than two factors, i.e. 1, 3, 19, 57, it is not a prime number.

Why is 57 not a Prime Number?

To understand whether 57 is composite or prime, it is important to find its factors.

Factors of 57: 1, 3, 19, 57

Since 57 has more than 2 factors, we can say that 57 is not a prime number.

☛ Prime Number Calculator

Is 57 a Composite Number?

Yes, since 57 has more than two factors i.e. 1, 3, 19, 57. In other words, 57 is a composite number because 57 has more than 2 factors.

Problem Statements:

Is 57 a Prime Number?	No
Is 57 a Composite Number?	Yes
Is 57 an Even Number?	No
Multiples of 57	57, 114, 171, 228, 285, 342, 399, 456, 513, 570
Cube Root of 57	3.848496
Square of 57	3249
Square Root of 57	7.549834
Is 57 a Perfect Cube?	No
Is 57 a Perfect Square?	No
Is 57 an Odd Number?	Yes

Fun Facts:

• A perfect square (square number) is always a composite number.
• A semiprime number is a composite number that is the product of exactly two prime numbers. Example - 611 is semiprime, since 611 can be written as 13 × 47.
• 23 is the smallest prime number having consecutive digits.

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