## FANDOM

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³7 (read as "to-the-third-seven") is a positive integer equal to $$7^{7^7} = 7^{823,543} \approx 3.759823526783788538922131 \times 10^{695,974}$$. It has 695,975 digits. The superscript 3 represents tetration, meaning this is 7 tetrated to 3.