There is no simple answer because there is no known pattern for prime numbers. So the answer is to find all the primes below 70 and add them together. Sorry, but no short cut for this.
391
The prime numbers less than 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47 So their sum is 328
To find the sum of the first ten prime numbers, you first have to find what the first 10 prime numbers are. They are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. Added together they equal 129.
13 + 11 Prime numbers are numbers only have 2 factors - 1, and itself.
The sum of the first two prime numbers is 5.
which three prime numbers have a sum of 59
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.
Since there is an infinite set of prime numbers the answer would be infinity.
the sum of the first 15 prime numbers is 328 .
The sum of the first 25 prime numbers is 1,060.
The sum of the first 250 prime numbers is 182,109.
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.