2, 11 and 31, are prime and, when added together, make 44.
17 and 19
Look at the first 2 of these prime numbers. They cannot be even for then they would be divisible by 2, so not prime. Add them together. Two odd numbers added together make an even. Subtract this even number from 50 (also even) so the third number must be even. There is no way of adding 3 prime numbers together to make an even number.
21
the products
2, 11 and 31, are prime and, when added together, make 44.
17 and 19
11 and 17 are both prime numbers which added together make 28. So are 23 and 5.
Look at the first 2 of these prime numbers. They cannot be even for then they would be divisible by 2, so not prime. Add them together. Two odd numbers added together make an even. Subtract this even number from 50 (also even) so the third number must be even. There is no way of adding 3 prime numbers together to make an even number.
21
the products
The prime factorization of 24 is 2x2x2x3.
Prime Factorization is finding which prime numbers multiply together to make the original number.
5 and 3 are two prime numbers which on adding give 8.
260 and 7
1 and 749, when added together.
0 and 49, added together.