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No, it cannot be done. As 23 is odd, two numbers used would have to be one odd and one even. As 2 is the only even Prime number and 21 + 2 equals 23, but 21 is not a prime number, it cannot be done.
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What is the largest prime number that can be written as the sum of two prime numbers and the difference of two prime numbers?
5
In how many ways can 47 be written as the sum of two prime numbers?
It cannot be. If 47 is the sum of two prime numbers, one must be an even number and one must be an odd number, because that is the only way to have a sum that is an odd number, such as 47. The only even prime number is 2. The number that with 2 will have a sum of 47 is 45. However, 45 is not a prime number. Therefore, there are not two prime numbers that have a sum of 47.
What are the numbers as sum of 2 prime numbers?
The sum of two prime numbers greater than 2 is an even number. The sum of 2 and any other prime number is an odd number.
When adding 2 prime number will the answer be prime?
The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.
What 3 prime numbers have the sum of 3?
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.
What is the largest prime number that can be written as the sum of two prime numbers and the difference of two prime numbers?
5
In how many ways can 47 be written as the sum of two prime numbers?
It cannot be. If 47 is the sum of two prime numbers, one must be an even number and one must be an odd number, because that is the only way to have a sum that is an odd number, such as 47. The only even prime number is 2. The number that with 2 will have a sum of 47 is 45. However, 45 is not a prime number. Therefore, there are not two prime numbers that have a sum of 47.
Every number from 1 to 100 can be written as the sum of two prime numbers?
No.
Can every number be written as the sum of 2 prime numbers?
1 can't.
What are the numbers as sum of 2 prime numbers?
The sum of two prime numbers greater than 2 is an even number. The sum of 2 and any other prime number is an odd number.
Can every square from 5-15 be written as the sum of 2 prime numbers?
There is only one square number from 5-15: 9. This can be written as the sum of 2 and 7, which are prime numbers.
Are odd numbers cannot be written as sum of prime numbers?
Some odd numbers can be written as the sum of prime numbers. 2 + 3 = 5
What prime number less than 20 can be written as the sum of four different prime numbers?
17
Which prime number can be written as both the sum of two prime numbers and the difference of two prime numbers?
5 = 2+3 = 7-2
What is the sum of the 13th and 14th and 15th prime numbers?
sum of the 13th and 14th and 15th prime numbers = 1311st to 12 prime numbers = 2, 3,5,7,11,13,17,19,23,29,31,3713th prime number = 4114th prime number = 4315th prime number = 47=================sum.......................=131
What prime number has the sum of 54?
what prime numbers have the sum of 54
When adding 2 prime number will the answer be prime?
The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.
