If 5 and 7 are prime numbers, which of the following CANNOT…

If 5 and 7 are prime numbers, which of the following CANNOT be the sum of 5 and 7?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #51929

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