Factors & Multiples Practice 1 This section features targeted practice questions designed to strengthen your skills in finding the HCF and LCM of numbers using the selection method. Related Lessons: iGCSE Factors & Multiples – Find HCF & LCM Practice 1 - Question 1 The numbers 392 and 588, written as the products of their prime factors, are\[\begin{align*}392&=2^3\times7^2\\588&=2^2\times3\times7^2\\\end{align*}\]Find the lowest common multiple of 392 and 588. Practice 1 - Question 2 Given that \(1960=2^3\times5\times7^2\) and \(2100=2^2\times3\times5^2\times7\), find the LCM of 1960 and 2100. Share With Friends: Related Lessons: iGCSE Factors & Multiples – Find HCF & LCM