Question

determine the number of different ways the given number can be written as the sum of 2 primes? 50

Answer 1

the prime numbers smaller than 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47.

let's find the sums that give us 50:

3+47=50

7+43=50

13+37=50

19+31=50

so the answer is four different ways.