2007-12-11 08:11:36 · 20 answers · asked by johnmajka66 1 in Science & Mathematics ➔ Mathematics
A prime number can be divided only by itself and 1.
4 and 6 can be divided by 2 so are not prime.
2007-12-11 19:58:29 · answer #1 · answered by Como 7 · 2⤊ 0⤋
A prime number is divisible by only 1 and itself.
4 is divisible by 1, 2, 4
6 is divisible by 1, 2, 3, 6
2007-12-11 16:15:11 · answer #2 · answered by A.Mercer 7 · 0⤊ 1⤋
I'm with morningfoxnorth on this one.
4 = 2 * 2 is the product of two whole numbers both greater than one. So is 6 = 2 * 3.
Prime numbers are the whole numbers, greater than one, which CANNOT be represented as a product of two other whole numbers both greater than one. Therefore by representing 4 and 6 as products like that, we show that they are not prime numbers.
2007-12-11 17:52:04 · answer #3 · answered by bh8153 7 · 0⤊ 0⤋
Because 4 = 2 x 2, and 6 = 2 x 3
Prime numbers can only be decomposed into 1 x
2007-12-11 16:15:48 · answer #4 · answered by morningfoxnorth 6 · 1⤊ 0⤋
A prime number is only divisible by 1 and itself (2,3,5,7,11,13...)
4 is also divisable by 2.
6 is divided by 2 and 3.
all square numbers are not prime.
4 is a square number
2007-12-11 18:39:17 · answer #5 · answered by Russ 1 · 0⤊ 0⤋
All answers above are correct. These are the first fifteen prime numbers:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47
As you can see, none are divisible by any number other than themselves and 1.
2007-12-11 16:29:04 · answer #6 · answered by Brunito 1 · 0⤊ 1⤋
A prime number is one that cannot be divided by anything except itself or 1. you can divide 4 by 2 for example, so it's not a prime number.
2007-12-11 16:16:26 · answer #7 · answered by t.bone 3 · 1⤊ 1⤋
Because they are divisible by another number eg 2.
The number 7 however is a prime number because you cannot divide it by another whole number (apart from 1 or 7)
2007-12-11 16:15:43 · answer #8 · answered by Anonymous · 0⤊ 1⤋
because a prime number is a number that can only be divided by itself and 1
e.g 19
but 4 and 6 can be divided by other numbers
2007-12-11 16:20:08 · answer #9 · answered by Anonymous · 0⤊ 1⤋
pime number is d number only can divide by itself and 1..
4 can be divide by 1,2,4
6 can be divide by 1,2,3.6
that mean 4 and 6 is not prime number.. but 1 are not prime number..
2007-12-11 22:56:23 · answer #10 · answered by m!l@ 2 · 0⤊ 0⤋