The sum of the whole numbers from 1 to 100 inclusive is 5,050.
Chat with our AI personalities
For the product to be zero, one of the numbers must be 0. So the question is to find the maximum sum for fifteen consecutive whole numbers, INCLUDING 0. This is clearly achived by the numbers 0 to 14 (inclusive), whose sum is 105.
The sum of the integers between 101 and 300 inclusive is equal to ((101+300) x 200) / 2 = 40100.
There are 8 numbers between 100 and 200 (inclusive) that have a digit sum of 12, namely: 129, 138, 147, 156, 165, 174, 183, 192.
The sum of the integers from 1 to 100 inclusive is 5,050.
2550