Navigation
Topics Register • News • History • How to • Sequences statistics • Template prototypes

Difference between revisions of "Factor"

From Prime-Wiki
Jump to: navigation, search
(restored)
 
m
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
 
A '''factor''' is one of the numbers or expressions that make up another number by [[multiplication]]. Let a and b be integers. Then a divides b (which may be written a | b ) if there is an integer c such that a * c = b. It is then said that c and a are factors or divisors of b, that b is divisible by c, and that b is a multiple of c.
 
A '''factor''' is one of the numbers or expressions that make up another number by [[multiplication]]. Let a and b be integers. Then a divides b (which may be written a | b ) if there is an integer c such that a * c = b. It is then said that c and a are factors or divisors of b, that b is divisible by c, and that b is a multiple of c.
  
A number that has no factors other than itself and 1 is a [[prime number]], and a number that has factors other than itself and 1 is called a [[composite|composite number]].
+
A number that has no factors other than itself and 1 is a [[prime]] number, and a number that has factors other than itself and 1 is called a [[composite number]].
  
 
==See also==
 
==See also==

Latest revision as of 19:03, 5 February 2019

A factor is one of the numbers or expressions that make up another number by multiplication. Let a and b be integers. Then a divides b (which may be written a | b ) if there is an integer c such that a * c = b. It is then said that c and a are factors or divisors of b, that b is divisible by c, and that b is a multiple of c.

A number that has no factors other than itself and 1 is a prime number, and a number that has factors other than itself and 1 is called a composite number.

See also