Let x represent one of the numbers and x+1, the next consecutive number. Set up the equation and solve:
x + x + 1 = 213 (next simplify)
2x + 1 = 213 (next subtract 1 from each side of the equation)
2x = 212 (next divide both sides by 2 to solve for x)
x = 106 (this is the first number, the next consecutive number is 107 {x+1})
106 + 107 = 213 (solution proved)
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They are: 212 plus 213 = 425
There are no four consecutive whole numbers that add up to 35. The sum of two consecutive [whole] numbers is an even number plus an odd number which is an odd number. The sum of two consecutive numbers and the two next consecutive numbers is the sum of two odd numbers which is even, but 35 is odd, so no four consecutive whole numbers cannot add up to 35.
The consecutive numbers that have a sum of 257 are 128 and 129.
Consecutive whole numbers will have an odd sum. Consecutive odd numbers, or consecutive prime numbers, will be 29 and 31.
Two consecutive numbers (pressumably integers) will always add up to an odd number, so this has no solution. If you mean "two consecutive even numbers" or "two consecutive odd numbers", you should quickly be able to find a solution by trial-and-error.