Answer: lcm = 160 and gcf =4
160 = least common multiple as 32/ 2 ad 20/2 = 10 + 16 then 10 * 16 = 160 and numbers of 10 do not multiply into any numbers of 16
Step-by-step explanation:
4 = Greatest common factor as when we do a tree product of primes 32 = 16 (2) 8(2) 4 (2) (2) and 20 = 10(2) 5(2) and 2^2 is the common multiple = 4
