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Checking for co-prime numbers - JavaScript
Two numbers are said to be co-primes if there exists no common prime factor amongst them (1 is not a prime number)
For example −
4 and 5 are co-primes 9 and 14 are co-primes 18 and 35 are co-primes 21 and 57 are not co-prime because they have 3 as the common prime factor
We are required to write a function that takes in two numbers and returns true if they are co-primes otherwise returns false
Example
Let’s write the code for this function −
const areCoprimes = (num1, num2) => {
const smaller = num1 > num2 ? num1 : num2;
for(let ind = 2; ind < smaller; ind++){
const condition1 = num1 % ind === 0;
const condition2 = num2 % ind === 0;
if(condition1 && condition2){
return false;
};
};
return true;
};
console.log(areCoprimes(4, 5));
console.log(areCoprimes(9, 14));
console.log(areCoprimes(18, 35));
console.log(areCoprimes(21, 57));Output
Following is the output in the console −
true true true false
Updated on: 14-Sep-2020
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