The amount that an undergraduate college student can borrow in federal student loans is limited to $31,000 for a dependent student or $57,500 for an independent student. (Most "teenaged" college students are dependents, so the majority of students are limited to the lower amount.) These loans are not credit based, so the student's credit history is irrelevant. If the student needs more than that, then he has to apply for a private student loan. Since these are credit based, nearly all students need to have a credit-worthy co-signer to be approved for one. So, it would be very unusual for a teenager with no credit history to be able to borrow six figure loans.