const assert = require('assert');

console.clear();

function findSmallestMultiple(numbers) {
  function isDividable(num) {
    for (let i = numbers.length - 1; i >= 0; i--) {
      if (num % numbers[i] !== 0) return false;
    }
    return true;
  }

  let counter = 1;
  while (true) {
    if (isDividable(counter)) break;
    counter++;
  }
  return counter;
}

// assert(findSmallestMultiple([7,8,9,10]) === 2520);

console.log(findSmallestMultiple([11,12,13,14,15,16,17,18,19,20]));