# Is 80 Prime Number or Composite Number

Last Updated: April 27, 2024

## Is 80 a Prime Number?

### No – 80 is not a Prime Number.

Why No: 80 is not a prime number because it does not meet the prime criteria of having exactly two distinct positive divisors: 1 and itself. Check if any number is prime or not

## Is 80 a Composite Number?

### Yes – 80 is a Composite Number.

Why Yes: 80 is a composite number because it has more than two distinct positive divisors. It is divisible by 1, 2, 4, 5, 8, 10, 16, 20, 40, and itself (80).

## Problem Statements

Is 80 a prime number? No
Is 80 a composite number? Yes
Is 80 a perfect square? No
Factors of 80 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
Multiples of 80 80, 160, 240, 320, 400, 480, 560, 640, 720, 800
Cube Root of 80 Approximately 4.34
Square of 80 6400
Square Root of 80 Approximately 8.944
Is 80 a Perfect Cube? No
Is 80 an Irrational number No
Is 80 a Rational number Yes
Is 80 a Real number Yes
Is 80 an Integer Yes
Is 80 a Natural number Yes
Is 80 a Whole number Yes
Is 80 an Even or odd number Yes (80 is an even number)
Is 80 an Ordinal number Yes
Is 80 a Complex number Yes (as all real numbers are also complex numbers)

## What are the Factors of 80?

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. Unlike a prime number, which is only divisible by 1 and itself, 80 is divisible by multiple numbers, demonstrating it has more than two factors. This clarification affirms that 80 is a composite number, not a prime number.

## What Kind of Number is 80?

80 is categorized as a composite number because it has more than two distinct positive divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, and itself.

• 80 is an even number, easily identified by its divisibility by 2.
• It holds significance in various contexts, notably for its properties as a composite number.
• 80 is a natural number, fitting within the set of counting numbers starting from 1.
• As a positive integer, 80 is positive and whole.
• It is discussed within the realm of composite numbers, distinguishing it from prime numbers.
• Being even, it is divisible by 2, marking it clearly as an even number.
• 80 is a rational number, as it can be expressed as a fraction with an integer numerator and a non-zero integer denominator.
• It is also a whole number, being non-negative and without fractions or decimals.

80, by virtue of being a composite number, stands apart in mathematics in comparison to prime numbers. Its divisibility by multiple numbers other than just 1 and itself highlights its composite identity. The characteristics of 80, such as being even, composite, and a natural number, render it a subject of interest across different mathematical discussions.

## Nearest Prime Numbers to 80

The nearest prime numbers to 80 are 79 and 83. 79 is the closest prime number less than 80, and 83 is the closest prime number greater than 80. These prime numbers bracket 80, situating it within a mathematical context of both composite and prime number discussions.

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