Question

helping me write five pairs of prime number less than 20 whose sum is divisble by 5​

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:

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Answer 2

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)

The numbers divisible by 5 are 5, 10, 15, 20, 25, ... (Multiples of 5)

these numbers as a sum of two prime numbers lesser than 20, that are, 2, 3, 5, 7, 11, 13, 17, 19

a) 5 = 2 + 3

b) 10 = 3 + 7

c) 15 = 2 + 13

d) 20 = 3 + 17

e) 20 = 7 + 13

Therefore, 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)