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Earn +20 ptsQ: What 2 prime number has the sum of 20?
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What are 2 even prime numbers for the sum of 20?
There is only one even prime number: 2. So, representing 20 as a sum of even prime numbers would be 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2.
What are two prime numbers less than 20 whose sum is also a prime number?
2 + 3 = 5
Does the sum of two prime numbers equal a prime number?
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.
What are 2 prime numbers whose sum is a prime number?
2 and 3.
What is the sum of the smallest prime number?
2
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