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The sum of 1+2+3+4+5+6+7+8+9+10+11+12 is divisible by how many natural numbers between 1 and 10?

 Dec 30, 2021
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[12  x  13] / 2 ==78 sum of all numbers from 1 to 12

 

78 is divisible by: 1,  2,  3,  4,  6 ==5 numbers

 Dec 30, 2021

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