What credit score do I need to consolidate my student loans?

I am looking to consolidate my private Student loans and am wondering what credit score I need in order to consolidate them. I am looking for a rough estimate. I know that the loan industry is really tight at the moment but I also know that I need to consolidate them or else I will be swimming in Student loan debt.
These are not government loans, they are private Student loans and must be consolidated in the private sector. I should add that. Thanks!

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