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Lowest Common Multiple (LCM) Test | Pre-employment assessment - Testlify
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Lowest Common Multiple (LCM) Test

Overview of Lowest Common Multiple (LCM) Test

This coding test assesses a candidate's ability to program a small algorithm, testing their basic programming skills. using a short and straightforward coding task, this test helps you identify developers with essential coding skills.

Skills measured

  • Logic Programming

Available in



Coding Test


15 Mins





Use of Lowest Common Multiple (LCM) test

The problem asks to find the largest element in a set S, where S is built by taking the LCM of every pair of adjacent elements in a given array arr of positive integers. The LCM (Least Common Multiple) of two numbers is the smallest positive integer that is a multiple of both of them.

The problem tests the attendee's understanding of the concept of LCM, the ability to compute it efficiently, and the ability to manipulate arrays. To solve the problem, the attendee needs to iterate through the array and compute the LCM of each pair of adjacent elements. Then, the largest element of the resulting set S needs to be found.

Relevant for

  • Full Stack Developer
  • Software Developer
  • Software Engineer

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Logic Programming

Logic Programming is a critical skill in finding the Lowest Common Multiple (LCM) of two or more numbers. It involves breaking down the problem into smaller, more manageable steps and applying logical rules to determine the solution. By understanding and using logic programming, individuals can efficiently calculate the LCM of any given set of numbers, providing a valuable tool for solving mathematical problems and optimizing algorithms. This skill is important for problem-solving in various fields such as mathematics, computer science, and engineering.

The Lowest Common Multiple (LCM) test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

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Why choose Testlify

Elevate your recruitment process with Testlify, the finest talent assessment tool. With a diverse test library boasting 1500+ tests, and features such as custom questions, typing test, live coding challenges, Google Suite questions, and psychometric tests, finding the perfect candidate is effortless. Enjoy seamless ATS integrations, white-label features, and multilingual support, all in one platform. Simplify candidate skill evaluation and make informed hiring decisions with Testlify.

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