what is prime and what is composite
2007-09-04 08:48:11 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
a prime number doesn't have any factors (other than itself and the number 1). Like 7, you can't divide it out, or 13, or 23, or 37, or 101 -- no factors.
On the other hand... 6 is a composite number: 2*3
8 is composite: 4*2 or 2*2*2
25 is composite 5*5
1000 is composite: 2*2*2*5*5*5
Composite numbers can be factored.
.
2007-09-04 08:57:06 · answer #1 · answered by tlbs101 7 · 0⤊ 0⤋
prime number = a whole number greater than 1 and only has 2 factors 1 and itself e.g prime numbers between 1 and 50 are , 2,3,5,7,11, 13 ,17, 19, 23, 29, 31, 37, 41, 43, 47, (29 is a prime number because it only has 2 factors 1 and 29 )
composite number=a whole number greater than 1 than has more than 2 factors (14 is composite because there is more than 2 factors 1 , 2 ,7 , 14 )
1 is not a prime or a composite number as there is only 1 factor
try drawing a factor spreadsheet this should help
2007-09-04 16:11:35 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Prime Numbers and Composite Numbers
Note: This is only about whole numbers (integers) greater than 1
In other words: 2,3,4,5,6,7,8,9,10,11,12,... etc
A Prime Number can be divided evenly only by 1, or itself.
A Composite Number can be divided evenly by numbers other than 1 or itself.
(So, any whole number greater than 1 is either prime or composite)
Examples
Number Can be Evenly
Divided By Prime, or
Composite?
1 (1 is not considered prime or composite)
2 1,2 Prime
3 1,3 Prime
4 1,2,4 Composite
5 1,5 Prime
6 1,2,3,6 Composite
7 1,7 Prime
8 1,2,4,8 Composite
9 1,3,9 Composite
10 1,2,5,10 Composite
2007-09-04 15:57:35 · answer #3 · answered by SweetIndigo25 3 · 0⤊ 0⤋
The area of a rectangular garden is 7 square yards. List all possible whole-number dimensions the garden can have. The whole-number dimensions, 1 and 7, of the rectangular garden above, are the factors of the number 7. A prime number has only two factors: 1 and itself... A composite number has more than two factors.
2007-09-04 15:54:21 · answer #4 · answered by Farooq 3 · 0⤊ 1⤋
prime is a number that can only be divided by 1 and its self..example 11...11/11= 1 and 11/1=11...composite numbers can be divided by other numbers other than 1 and itself...example...21/3= 7 amd so on...
2007-09-04 15:58:29 · answer #5 · answered by Starlytefairy 3 · 0⤊ 0⤋
Prime number is a number that is divisible only by itself and one.
Composite is a number that is factorable, meaning it can be divisible by more numbers than itself and one.
2007-09-04 15:54:11 · answer #6 · answered by isock86 3 · 1⤊ 0⤋