37 and 5
37 + 5 31 + 11
12
210
42 has three prime factors: 2, 3 and 7
The only way for three prime numbers to have a sum of 42 is if one of the prime numbers is 2, as 2 is the only even prime number. The other two prime numbers must add up to 40, which can only be achieved by 3 and 37. Therefore, the three prime numbers that have a sum of 42 are 2, 3, and 37.
37 and 5
37 + 5
37 and 5
37 + 5 31 + 11
There are quite a few. 8, for example.
12
210
37, 3, 2
37 and 5
23 and 19 are both prime numbers and they add up to 42.
42 has three prime factors: 2, 3 and 7