2007-12-04 05:12:51 · 8 answers · asked by dsbd05181988 1 in Science & Mathematics ➔ Mathematics
A prime number is a number that can be divided by itself and 1 only.
The smallest prime number is 2.
The first few prime numbers are:-
2 , 3 , 5 , 7 . 11 , 13 , 17 , 19 , 23---------
2007-12-04 05:26:29 · answer #1 · answered by Como 7 · 2⤊ 0⤋
Positive integers which are divisible only by one and themselves. By definition, 2 is prime and 1 is not. All prime numbers except 2 are odd, since even numbers are divisible by 2. The first several prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, ...
2007-12-04 13:16:59 · answer #2 · answered by Andy J 7 · 1⤊ 0⤋
No AndyJ there are also -ve prime numbers
-2 , -3 , -5 .....
the primer number is integers that is divisable by 1 & itself only
like 2,3
7 is prime
but 9 is not as it is divisible by 3
[ some consider that 1 is also a prime ]
2007-12-04 13:29:45 · answer #3 · answered by mbdwy 5 · 0⤊ 2⤋
A prime number is a number that can only be divided by itself or by 1. (and cannot be divided by any other number).
examples: 2, 3, 5, 7, 11, 13, 17, 19.
2 can only be divided by 2, or by 1
3 can only be divided by 3, or by 1
etc..
2007-12-04 13:19:15 · answer #4 · answered by Serenity 3 · 1⤊ 1⤋
Prime Numbers just divided to self and 1.
for example: 11 is just 11 * 1
But 12 is 12 * 1 and 3* 4 and 6 * 2 and 3 * 2 * 2 ,...
so 11 is Prime. prime numbers: 2,3,5,7,11, 13, 17,....
2007-12-04 13:26:41 · answer #5 · answered by msaremif 2 · 0⤊ 1⤋
They are the various integers, greater than one, which cannot be formed as the product of two other integers both greater than one.
21 is not prime, because it is 3 times 7.
23 is prime, because there is no way to form it by multiplying any two other integers. Multiplying 23 by 1 doesn't count, because it can't help being true, and it tells us nothing new or useful about 23.
2007-12-04 14:00:20 · answer #6 · answered by bh8153 7 · 0⤊ 1⤋
A prime number is a non-zero number, other than 1, whose only actors are itself and 1.
2007-12-04 13:17:25 · answer #7 · answered by Hiker 4 · 0⤊ 1⤋
numbers divisable only by themselves and 1 (and the division being a natural number)
2007-12-04 13:17:11 · answer #8 · answered by clavdivs 4 · 1⤊ 1⤋