2 x 3 x 5
30
The factor pairs of 30 are (30,1)(15,2)(10,3)(6,5) None of them add up to 20.
It is impossible for three prime numbers less than 30 to add up to 1955. After all, 30+30+30 is only 90.
There are many combinations of numbers that can add up to 87. For example, you could use 80 and 7, or 50 and 37. Additionally, you could use three numbers like 30, 30, and 27. The possibilities are endless, depending on how many numbers you want to use.
33+30+36=99
No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.
13 & 17
2 x 3 x 5
There are 18 composite numbers up to and including 30
30
The factor pairs of 30 are (30,1)(15,2)(10,3)(6,5) None of them add up to 20.
No two (or more) composite numbers can multiply to 30.
They are: 13+17 = 30
They are 23 plus 7 = 30
2,3,5,7,11,13,17,19,23,29
It is impossible for three prime numbers less than 30 to add up to 1955. After all, 30+30+30 is only 90.