The primary advantage of using serverless computing lies in its ability to reduce operational costs and increase scalability. Developers can focus on writing code without managing underlying servers, which allows for automatic scaling according to demand. This model also facilitates faster deployment of applications, as developers are relieved from the burden of infrastructure management. Since resources are provisioned on a pay-as-you-go basis, organizations only pay for the computing power they actually use, further enhancing cost-efficiency and operational agility.