You'll need to restrict that to positive numbers. Calculating all of the negative even numbers is impossible. There's a formula for this. (x^2 + x) where x is the number of integers. 14 x 14 + 14 = 210
The sum of the first 30 positive even numbers is 930.
The sum of the first 30 even whole numbers is 30(31) or 930
The sum of the first 30 positive even numbers is 930.
930
The answer to what is the sum of the first positive even numbers is 930. It doesn't mean that you add all the even numbers up until you reach the number 30. In fact, since you have to get the sum of the even numbers, you have to add all even numbers until you get to the number 60.
There is no conjecture about the sum of the first 30 positive even numbers. The answer can be derived and proven. A statement that has been proven is no longer a conjecture.
The numbers are -30, -28 and -26.
50
The sum of an odd number of odd numbers can't be an even number.
The numbers are 28, 30, 32 and 34.
The numbers are 26, 28, 30, 32 and 34.
35