### 4 Answers

- PuzzlingLv 74 weeks ago
A prime number is any positive integer that has exactly two divisors, 1 and itself.

1 is not prime because it only has 1 divisor (1).

2 is a prime number because it is only divisible by 1 and itself (1, 2)

3 is a prime number because it is only divisible by 1 and itself (1, 3)

4 is not prime because in addition to 1 and 4, it is also divisible by 2.

5 is a prime number because it is only divisible by 1 and itself (1, 5)

6 is not prime because in addition to 1 and 6, it is also divisible by 2 and 3.

etc.

The first few prime numbers are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, ...

Source(s): http://oeis.org/A000040 - 4 weeks ago
A prime number is a number that cannot be divided by a whole number (aside from itself or 1) and result in a whole number. It does not have any factors aside from 1 and itself. 2 does not have any whole number aside from 1 or 2 that it can be divided by to produce a whole number. Such is the same with 5 (factors of 5 and 1), 7 (factors of 7 and 1), 19 (factors of 19 and 1), etc.

- 4 weeks ago
It means a number that cannot be divided evenly with any number other whole number than one or itself.

- 4 weeks ago
A number that does not have any whole number it can be divided by.Such as 7.It cannot be divided by any whole number.A whole number is a number without any decimal places after it.