The sum of all integers from 1 to 20 inclusive is 210.
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The sum of all the the integers between 1 and 2008 (2 through 2,007) is 2,017,036.
Select all the numbers that $4221462$ is divisible by.
Factors of 20 are 1, 2, 4, 5, 10 and 20. And their sum is 1 + 2 + 4 + 5 + 10 + 20 = 32.
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Consecutive means one after another.If the first is a, then the second is a+1.The sum of these isa + a + 1 = 2a+1 = -3772a = -378a = -189So the two numbers are -189 and -188