The prime numbers between 1 and 20 are:
2, 3, 5, 7, 11, 13, 17 and 19.
Note that a Prime number has only two factors, 1 and itself and one. Number 1 is not considered to be a prime number because it has only one factor.
These are the prime numbers 1-20 2,3,5,7,11,13,17,19
2/5 of the numbers from 1 to 20 are prime numbers
The prime numbers between 1 and 20 are 2, 3, 5, 7, 11, 13, 17, and 19.
There are 8 prime numbers between 1 and 20. The numbers are 2, 3, 5, 7, 11, 13, 17, and 19.
Prime numbers only have factors of 1 and themselves: 23, 29
These are the prime numbers 1-20 2,3,5,7,11,13,17,19
2/5 of the numbers from 1 to 20 are prime numbers
Prime numbers are numbers that can only be divided by one and itself. The answer is 2,3,5,7,11,13,17,19. 1 is not prime nor composite.
The prime numbers between 1 and 20 are 2, 3, 5, 7, 11, 13, 17, and 19.
There are eight prime numbers from 1 to 20: 2 3 5 7 11 13 17 19
The prime numbers from 1 - 20 are 2, 3, 5, 7, 11, 13, 17, and 19.
There are 8 prime numbers between 1 and 20. The numbers are 2, 3, 5, 7, 11, 13, 17, and 19.
Prime numbers only have factors of 1 and themselves: 23, 29
The Prime Numbers in the 20's are 23 and 29 because they are only divisible by 1 and the number itself.
There are 8 out of 20 numbers that are prime, so 8/20, or 2/5.
The prime numbers from 1 to 20 are 2, 3, 5, 7, 11, 13, 17, and 19. The original answer incorrectly included 1, 9, and 15.
no, 20 is even; therefore it is a multiple of 2.