Answer:
22
Step-by-step explanation:
198 = 2×3²×11
For 198n to be a perfect square, each prime factor must have an even exponent. So the smallest 198n would be:
198n = 2²×3²×11²
198n = 4356
n = 22
I think option two is the correct one, because 1 and two contradict eachother and 4 doesn't make sense
Answer: 6 x 8=48
Step-by-step explanation:
