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Not true.
2 + 3 = 5, where all three are primes.
One of the primes in the sum must be 2, otherwise both primes would be odd and their sum would be even (and >2) and therefore not prime. Such primes: p and p+2 [3 and 5 in the above example] are known as twin primes and there are infiitely many twin primes.
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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
Why is the sum of prime numbers cannot be a prime?
It can be. 2 + 3 = 5
What two prime numbers have a sum of 54 and 84?
If two prime number have a sum of 54 they cannot have a sum of 84, and conversely.
Do odd numbers cannot be written as sum of prime numbers?
No. 2 + 3 = 5
What is the sum of the 1st prime numbers?
The sum of the first two prime numbers is 5.
Which three prime numbers have the sum 59?
which three prime numbers have a sum of 59
What numbers as a sum of two prime numbers 95?
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.
Which even prime numbers are the sum of 20?
There is only one prime number and it is '2' You cannot have any other even prime number
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 is the sum of the first 15 prime numbers?
the sum of the first 15 prime numbers is 328 .
What will be the sum of the first 25 prime numbers?
The sum of the first 25 prime numbers is 1,060.
What is the sum of the first 250 prime numbers?
The sum of the first 250 prime numbers is 182,109.
