Answer:
16rs⁴
Step-by-step explanation:
prime factorization of 48r³s⁵ is: 2·2·2·2·3·r·r·r·s·s·s·s·s
prime factorization of 64rs⁴ is: 2·2·2·2·2·2·r·s·s·s·s
if you were to circle factors common to each you would have:
2·2·2·2·r·s·s·s·s which equals 16rs⁴ which is the GCF