Is the number 2438100000001 prime or composite?

**Details and Assumptions**:No calculators or computers allowed.

Is the number 2438100000001 prime or composite?

**Details and Assumptions**:No calculators or computers allowed.

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TopNewestThis problem was stolen from Nick's Mathematical Puzzles without any recognition.

Shame on you. – Guilherme Dela Corte · 3 years, 9 months ago

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