Question

Definition of prime and composite numbers with examples

Answer 1

Answer:

A prime number is a whole number with exactly two integral divisors, 1 and itself. ... Definition: A composite number is a whole number with more than two integral divisors. So all whole numbers (except 0 and 1 ) are either prime or composite. Example: 43 is prime, since its only divisors are 1 and 43 .

Answer 2

Answer:

A prime number is a whole number with exactly two integral divisors, 1 and itself.

The number 1 is not a prime, since it has only one divisor.

So the smallest prime numbers are:

2,3,5,7,⋯

The number 4 is not prime, since it has three divisors ( 1 , 2 , and 4 ), and 6 is not prime, since it has four divisors ( 1 , 2 , 3 , and 6 ).

Definition: A composite number is a whole number with more than two integral divisors.

So all whole numbers (except 0 and 1 ) are either prime or composite.

Example:

43 is prime, since its only divisors are 1 and 43 .

44 is composite, since it has 1,2,4,11,22 and 44 as divisors.