Question

In the set of counting numbers from 70 to 80, there are two pairs of numbers whose sums of prime factors are the same. Find the numbers and give the sum

Answer 1

Answer:

Step-by-step explanation:

   Input the number to be checked.

   Repeat from i = 2 to (num/2).

   Check if (i) is a prime number.

   If i is prime, check if (n - i) is a prime number.