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If one of the two numbers is 2, the sum of two prime numbers may sometimes be a Prime number. Examples of this are 2 + 11 = 13, 2 + 521 = 523, 2 + 281 = 283. There are an infinite number of similar examples where the sum of 2 plus a prime is another prime. However if neither number is 2, then the sum of two prime numbers is always an even number greater than 2 and therefore composite.
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Earn +20 ptsQ: Does the sum of two prime numbers equal a prime number?
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What prime number has the sum of 54?
what prime numbers have the sum of 54
What is the sum of the 13th and 14th and 15th prime numbers?
sum of the 13th and 14th and 15th prime numbers = 1311st to 12 prime numbers = 2, 3,5,7,11,13,17,19,23,29,31,3713th prime number = 4114th prime number = 4315th prime number = 47=================sum.......................=131
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