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Congruence makes my day

Number Theory Level 3

${a^{a^{a^{....^{\text{m times}}}}} \equiv 0 \mod (\text{am})}$

for all prime $\text{a's}$

The congruence above is $\text{\_\_\_\_\_\_\_\_\_\_}$ .

True False

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Excel in math and science

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It's hard to learn from lectures and videos

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