There is only one Prime number and it is '2' You cannot have any other even prime number
There is only one even prime number: 2. So, representing 20 as a sum of even prime numbers would be 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2.
-20
148
It is 75.
3 + 17 = 20
They are: 2+7+11 = 20
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
The only even prime number is 2. It happens twice in the prime factorization of 20.
3 and 17
600 * * * * * It is, in fact, 639
Seven of them.
17