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17 and 17
3 and 31
5 and 29
11 and 23
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What 2 prime numbers add together to make 91?
Two is the only even prime number. When you add an odd number to another odd number, you get an even number. When you add an even number to an odd number, you get an odd number. 91 is an odd number, therefore the answer is 2 and 89.
What two prime numbers add up to 144?
Split the number in half and make an equation adding the two together to make the desired amount. Unless the number that is half the total is prime, adjust the first number down by an amount to make it a prime number, then adjust the second one up by an equal amount and check whether it is also a prime number. If the second number is also a prime number, you have found two prime numbers that equal the desired amount. If not, adjust the first number down to another prime number, repeating the procedure above until you have two prime numbers.If you split 144 in half, the result is 72. Take the equation 72 + 72 = 144. Since 71 is prime, adjust the first number down by 1 and the second number up by 1 to get 71 + 73 = 144. Since 73 is prime, too, you now have two prime numbers that add up to 144.
What two prime numbers add to make a cube number?
5 and 8
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.
What two prime numbers add up to 247?
All of the prime numbers (except 2) are odd. The sum of any two prime numbers (except 2) will be even. Unless 245 is a prime number (it isn't) your question does not have a solution.
What are the factors of 1920 that add up too 20?
Since 19 is a prime number, it only has two factors - 1 and 19.
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 two prime numbers add up to 35?
For two primes to add up to an odd number, one of them has to be two. 33 isn't prime, so there is no solution.
What even number cannot be formed by two prime numbers?
You can not add two positive prime numbers and get zero.
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.
Does two prime numbers always add up to an even number?
No, they do not. If one of the prime numbers is 2, you will have an odd number.
What 2 prime numbers add together to make 91?
Two is the only even prime number. When you add an odd number to another odd number, you get an even number. When you add an even number to an odd number, you get an odd number. 91 is an odd number, therefore the answer is 2 and 89.
What two prime numbers add up to 144?
Split the number in half and make an equation adding the two together to make the desired amount. Unless the number that is half the total is prime, adjust the first number down by an amount to make it a prime number, then adjust the second one up by an equal amount and check whether it is also a prime number. If the second number is also a prime number, you have found two prime numbers that equal the desired amount. If not, adjust the first number down to another prime number, repeating the procedure above until you have two prime numbers.If you split 144 in half, the result is 72. Take the equation 72 + 72 = 144. Since 71 is prime, adjust the first number down by 1 and the second number up by 1 to get 71 + 73 = 144. Since 73 is prime, too, you now have two prime numbers that add up to 144.
What 2 prime numbers add up to 27?
29
What two prime numbers add together to make 97?
The only way two prime numbers add up to an odd number is if one of them is 2. Since 95 isn't prime, there is no solution.
What two prime numbers add up to 65?
There's no solution. For two primes to add to an odd number, one of them would have to be two. 63 isn't prime, so there's no solution.
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.
