Question

write five pairs of prime numbers less than 20 whose sum is divisible by 5. ( hint: 3 + 7 = 10)​

Answer 1

Answer:

Five pairs of Prime Numbers less than 20 whose sum is divisible by 5 are (2,3), (3,7), (2,13), (5,5), (3,17), (7,13) According to the Divisibility Rule of 5, any number ending with 0 or 5 is divisible by 5.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

2 + 3 = 5

13 + 2 = 15

17 + 3 = 20

19 + 11 = 30

13 + 7 = 20