2 and 42
8 and 36
12 and 32
16 and 28
56 and -12
48 and -4
The answer is 50 because its factors are 1,2,5,10,25,50. When you add up the sum of 50 you get 5 which is a prime number. Also it is between 44 and 53. :)
Add them up. The factors of 9 are 1, 3 and 9. The sum of the factors is 13.
The answer is 608.
15 + 15 + 5 + 5 + 3 + 1 = 44
6323
How about: 5-4 = 1
584
the prime factors of 72 are 2 and 3 6,12, and 1 (also factors) sum up to 19
2024
Add them up. The prime factors of 30 are 2, 3 and 5. You can handle the rest.
Add them up. 40, 42, 44, 45, 46, 48, 49, 50
Add them up. 40, 42, 44, 45, 46, 48, 49, 50