https://www.salliemae.com/assets/about/investors/debtasset/SLM-Loan-Trusts/Prospectus/SLM2013-4_PreliminaryProspectus_as-printed.pdf Prospectus Supplement to Base Prospectus dated August 5, 2013 $746,600,00 SLM Student Loan Trust 2013-4 Issuing Entity: SLM Funding LLC Depositor: Sallie Mae, Inc. Sponsor, Servicer and Administrator: Student Loan-Backed Notes Career Training Loans. Sallie Mae Bank funds Career Training Loans. Career Training Loans provide eligible borrowers financing at technical and trade schools, tutorial and learning centers, and private kindergarten through secondar