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Express 18 as the sum of two prime numbers in all possible ways.
Given :
The given number is 18.
To do :
We have to express 18 as the sum of two prime numbers in all possible ways.
Solution :
Prime number :
A number which has exactly two factors (1 , itself ).
$5 + 13 = 18, 13 + 5 = 18$
$7 + 11 = 18, 11 + 7 = 18$
5 , 7 , 11 , 13 are prime numbers.
These are the possible ways, in which 18 can be expressed as the sum of two prime numbers.
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