The prime numbers of 20 are 2, 2 and 5. (2*2*5 = 20)
10 and 20 are composite numbers, not prime numbers. The prime factorization of 10 is 2 x 5. The prime factorization of 20 is 2 x 2 x 5.
The only even prime number is 2. It happens twice in the prime factorization of 20.
The prime factors of 20 are 2, 2, and 5.
They are: 2*2*5 = 20
2/5 of the numbers from 1 to 20 are prime numbers
2 is already prime. 2 x 2 x 5 = 20
20 has two prime factors which are 2 and 5
All the numbers from 2 to 19 are multiples of prime numbers.
7 + 13 = 20 Note that there are no two prime numbers x and y that multiply to 20.
No, they are not a set of prime numbers.
There are way more than 20 prime numbers, since there are infinite numbers.