As shown below:
Need to have pre-knowledge:
1. Euler function: https: //www.cnblogs.com/eastblue/p/7634695.html
2. inverse: https: //www.cnblogs.com/eastblue/p/7629912.html
As shown below:
Need to have pre-knowledge:
1. Euler function: https: //www.cnblogs.com/eastblue/p/7634695.html
2. inverse: https: //www.cnblogs.com/eastblue/p/7629912.html