# What is a whole number that has exactly two factors 1 and itself?

## What is a whole number that has exactly two factors 1 and itself?

A prime number is a whole number greater than 1 with exactly two factors, 1 and itself.

What prime number has only 2 factors?

1
Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.

What is Coprime number?

Co-prime numbers are the numbers whose common factor is only 1. Such numbers have only 1 as their highest common factor, for example, {4 and 7}, {5, 7, 9} are co-prime numbers. Co-prime numbers need not be prime numbers always. Two composite numbers like 4 and 9 also form a pair of co-primes.

### What number is a whole number greater than 1?

Prime Number
A Prime Number is a whole number greater than 1, whose only factors are itself and 1.

When the GCF of the numerator and the denominator of a fraction is 1?

A fraction is in simplest form if the greatest common factor (GCF) of its numerator and denominator is 1 — that is, if they share no common factors other than 1 . is not in simplest form, since 6 and 21 share a common factor of 3 .

What are the factors for 2?

The factors of 2 are 1 and 2.

#### Is 2 an even prime number?

The number 2 is prime. (It is the only even prime.)

How do you find the HCF?

HCF of two or more numbers is the highest common factor of the given numbers. It is found by multiplying the common prime factors of the given numbers. Whereas the least common multiple of two or more numbers is the smallest number among all common multiples of the given numbers.

What is meant by twin primes?

: a pair of prime numbers (such as 3 and 5 or 11 and 13) differing by two.

## What is a common whole number?

In mathematics, whole numbers are the basic counting numbers 0, 1, 2, 3, 4, 5, 6, … and so on. 17, 99, 267, 8107 and 999999999 are examples of whole numbers. Whole numbers include natural numbers that begin from 1 onwards. Whole numbers include positive integers along with 0. Fun Facts.

What is it called when there is a whole number and a fraction?

A mixed number is a whole number, and a proper fraction represented together. It is thus, a mixed number. Some other examples of mixed numbers are. Parts of a mixed number. A mixed number is formed by combining three parts: a whole number, a numerator, and a denominator.

What is a number that names part of a whole or part of a group?

Math Vocabulary

A B
fraction a number that names part of a whole or part of a group
numerator the number above the bar in a fraction; that tells how many parts are being used
denominator the number below the bar in a fraction; the part of a fraction that tells how many equal parts are in the whole