# JavaScript: Check sum of consecutive positive integers

## JavaScript Math: Exercise-73 with Solution

Write a JavaScript program to check if a given positive integer can be expressed as the sum of two or more consecutive positive integers.

Sample Data:
33 can be represented as 11 + 22
10 = 1+2+3+4
but 8 cannot be represented in this way.

Sample Solution-1:

JavaScript Code:

``````/**
* Checks if a given number is not a power of two.
* @param {number} n - The number to check.
* @returns {boolean} - True if the number is not a power of two, false otherwise.
*/
function test(n)
{
// Perform bitwise AND operation between n and n - 1, and check if the result is not zero
return (n & (n - 1)) != 0;
}

// Test the function with different numbers
console.log(test(33)); // Output: true
console.log(test(10)); // Output: true
console.log(test(8));  // Output: false
```
```

Output:

```true
true
false
```

Flowchart:

Live Demo:

See the Pen javascript-math-exercise-73-1 by w3resource (@w3resource) on CodePen.

Sample Solution-2:

JavaScript Code:

``````/**
* Checks if a given number is not a power of two.
* @param {number} n - The number to check.
* @returns {boolean} - True if the number is not a power of two, false otherwise.
*/
function test(n){
// Calculate the base-2 logarithm of n and check if it's not an integer
return !Number.isInteger(Math.log2(n));
}

// Test the function with different numbers
console.log(test(33)); // Output: true
console.log(test(10)); // Output: true
console.log(test(8));  // Output: false
```
```

Output:

```true
true
false
```

Flowchart:

Live Demo:

See the Pen javascript-math-exercise-73-2 by w3resource (@w3resource) on CodePen.

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