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This is false. 3 + 4= 7. But two numbers (besides the number itself and 1) times each ather are never prime. This is how we get prime numbers.

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14y ago
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11y ago
  1. NO ever

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Q: When you add two prime numbers the sum is never prime?
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Related questions

How do you get the sum of prime numbers?

Add them together.


If you add a prime number to itself is the the sum composite or prime?

The sum of two prime numbers will be composite unless one of the prime numbers is 2.


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The only way for three prime numbers to have a sum of 42 is if one of the prime numbers is 2, as 2 is the only even prime number. The other two prime numbers must add up to 40, which can only be achieved by 3 and 37. Therefore, the three prime numbers that have a sum of 42 are 2, 3, and 37.


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In order to find three different prime numbers that sum up to 40, we need to identify the possible combinations. The only prime number that is even is 2, so one of the prime numbers must be 2. The other two prime numbers that add up to 38 can be 19 and 17. Therefore, the sum of the three different prime numbers that add up to 40 is 2 + 19 + 17 = 38.


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