What is the difference between prime numbers and composite numbers?

A

prime

number is a

numerical digit

that is

greater than 1

and that you can only divide it by 1

and by itself, the remainder will be 0. Example:

7

can only be

dividing

by

7

or 1.

(

7/7

=1)

and (7/1=7

)

A composite number

is a number that you can divide by more numbers and than 1 and itself.

Those dividers are call factors of that number.

All even numbers are considered composite

numbers except for number 2. Example: 8 have more than one d

ivider; there are 4 factors of 8.

(8/8=1) (8/4=2) (8/2=4) and (8/1=8)

The difference is that prime number can only be divided by

them

and

1 and

composite number

can be factorized.

A composite number has more than two different factors.

How are prime numbers and composite numbers related?

The

re is a relationship

between prime numbers and composite

numbers;

they are antonyms or

opposites of each other. A natural number is either prime or composite, but it cannot be both.

Prime numbers ha

ve only two factors, one and itself. Composite numbers are whole numbers that

are not prime numbers, which means that they have factors other than one and itself.

Prime numbers are often used in cryptography. Why do you think prime numbers would

be more

useful for the creation of codes than composite numbers?

The security of those codes mainly depends on the difficulty of factoring large composite

numbers. When configuring an RSA system they choose two numbers, after choosing the two

numbers they multiply

the primes together to create a composite number, that the factors are the

two original prime numbers.

## Comments 0

Log in to post a comment