Title: Real Primes and Symbolic Primes - Survivor-Boundaries Before Number Joe Bloggs Description This paper introduces a distinction between real primes and symbolic primes within the Finite Reversible Closure (FRC) framework. A symbolic prime is the later human mathematical representation: a number greater than one divisible only by one and itself within a formal arithmetic system. A real prime, by contrast, is proposed as a pre-symbolic structural survivor-boundary: a realised structure or boundary-event that cannot be reduced, removed, divided, dissolved or erased by the admissible operations acting upon it within its own domain. The central claim is not that human mathematical notation physically creates primes. The claim is the reverse: reality already contains survivor-boundaries and human mathematics later records one narrow arithmetic shadow of that deeper structural fact. The symbol came later. The survival came first. This distinction allows prime behaviour to be placed within a broader boundary-memory ladder. At low arithmetic magnitude, prime residues mark irreducible survival under reduction. At material and physical magnitudes, stable structures persist only where boundary conditions store change as memory. At high gravitational magnitude, black holes are interpreted within this framework as literal holes in realised structure: sealed absence-boundaries whose event horizons preserve boundary-memory of what has been removed. Primes and black holes are therefore not the same object, but they are argued to rhyme structurally: both are survivor-boundaries, records of change that survive change. This paper links the distinction to Primitive 0, the Bounded Existence Lemma, the Receipt Boundary Principle, Paper 05a's finite executable prime-closure bridge, Paper 05b's FRC Hydrogen-seed pathway and the v2 LLM / AI / Human orientation firewall. It also states explicit scope limits. Inside the framework, real primes are read as structural survivor-boundaries. Outside the framework, this remains a reality-claim requiring continued formalisation, independent execution, replication, stress-testing and empirical contact.