how many pairs of prime numbers are there which can be used to express 20 as the sum of two prime numbers
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Two prime numbers whose difference is ‘2’ is also called as twin primes or twin prime number.
3 pairs : (41 , 43) ( 73 , 71) (5 , 3)
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3 pairs : (41 , 43) ( 73 , 71) (5 , 3)
plz Mark as brainlaint......
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