2 3 5 7 11 13 17 19.
The prime factors of 20 are 2x2x5.
All the prime numbers less than 20 are 2,3,5,7,11,13,17,19
The numbers 11, 13, 17 and 19 are prime.
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
The prime numbers from 1 - 20 are 2, 3, 5, 7, 11, 13, 17, and 19.
The prime factors of 20 are 2x2x5.
A number will always have 1 and itself as factors. And thus the only numbers with 2 factors will be prime numbers. The only prime numbers below 20 are 2, 3, 5, 7, 11, 13, 17 and 19, and thus these are the only numbers below 20 that have 2 factors.
NO!!!! Other than '2' all prime numbers are odd numbers. 4,6,10 & 20 are all even so they are not prime numbers.
All the numbers from 2 to 19 are multiples of prime numbers.
All the prime numbers less than 20 are 2,3,5,7,11,13,17,19
The numbers 11, 13, 17 and 19 are prime.
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
The prime numbers from 1 - 20 are 2, 3, 5, 7, 11, 13, 17, and 19.
These are the prime numbers 1-20 2,3,5,7,11,13,17,19
2,3,5,7,11,13,17,19
2,3,5,7,11,13,17,19
11,13,17,19