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

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

Add them together.

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The sum of the five smallest prime numbers is 18.

The given numbers of 15 and 35 are not prime numbers but they add up to 50

There are no prime numbers greater than 10 that add up to 29. Since all prime numbers greater than 2 are odd numbers, no two prime numbers greater than 2 can have an even number for their sum.

It is not possible to multiply two prime numbers and get 90. You can add 43 and 47.

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You can't write that as the sum of two prime numbers. Note: Goldbach's Conjecture (for expressing numbers as the sum of two prime numbers) applies to EVEN numbers.

The sum of the first two prime numbers is 5.

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There are not three prime numbers that have the sum of 3. The smallest prime number is 2. If all three prime numbers were 2, the sum would 2 + 2 + 2 = 6, so that is the smallest number that is the sum of three prime numbers.

It is impossible for the product of two prime numbers to be prime. It is impossible for the sum of two prime numbers to be prime as long as one of the numbers isn't 2.

the sum of the first 15 prime numbers is 328 .

The first prime numbers are 2 and 3. Their sum is 5.

The sum of the first 250 prime numbers is 182,109.

The sum of the first 25 prime numbers is 1,060.

If you meant "what two prime numbers have a sum of 36?" the answer is 19 and 17.

what prime numbers have the sum of 54

Without using the number two, it is not possible to sum two prime numbers at get a prime number as a result. This is because all prime numbers (except for 2) are odd, and the sum of two odd numbers is always even. The only even prime number is 2. The only way to add two non-zero positive numbers to get 2 is 1+1, and 1 is not a prime number (since it only has one factor).

The numbers are 2,3,5, and 7. If you add them together you get 17.

An example of two numbers which add together to make 100 are 47 and 53.

The sum of the first 8 prime numbers is 77.

The sum of the two prime numbers 3 and 73 is 76.