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What three numbers add up to a prime number?

if you mean what three prime numbers add up to a prime number then the answer is : 5 + 7 + 11 = 23


To what prime number can you add 3 and get a sum that is a prime number?

2. 2 + 3 = 5 Or if you mean like add 3 to the prime number, then add that to the prime? 2 still works!! 2: 2 + 3 = 5. 5 + 2 = 7


What is a prime number that has digits that add to the smallest prime number?

It is: 11 because 1+1 = 2 which is the smallest prime number


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

Composite.


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

Composite.


What is the number when you add or multiply by itself you get the same number?

Prime number


I am a prime number less than 10 if you add 10 or 20 the result is a prime number what number am i?

The prime number less than 10 that, when added to either 10 or 20, results in a prime number is 3. When you add 10 to 3, you get 13, which is a prime number. Similarly, when you add 20 to 3, you get 23, which is also a prime number.


If you add two prime numbers together what do you get?

You can get another prime (only if one of the numbers added is 2), for example, 101 + 2 = 103. If you add together two odd prime numbers, you will get an even number, which will not be a prime number. (An even number is a number that is divisible by 2; if such a number is greater than 2, it is not a prime number.)


What prime number multiplied by another prime number add up to 91?

7 x 13


What is a prime number less than 10 and if you add 10 or 20 to it the result is a prime number?

3


What 2 prime numbers add to make 1.32?

When you add two or more prime numbers you will only end up with a whole number and not a decimal number.


If you add or subtract using only prime numbers is the answer always a prime number?

No, as all prime numbers are odd, excluding 2, and when you add two odd numbers you get an even number. This even number can't be a prime number as it will be divisible by 2. 101 and 31 are both prime, but 101+31 is 132.