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Results (displaying both matches)
| Label | Polynomial | Discriminant | Galois group | Class group |
|---|---|---|---|---|
| 21.21.250670242577215636880655781883488848049340416.1 | x21 - 42x19 + 756x17 - 7616x15 - 34x14 + 47040x13 + 952x12 - 183456x11 - 10472x10 + 448448x9 + 57120x8 - 658224x7 - 159936x6 + 522144x5 + 213248x4 - 156800x3 - 106624x2 - 18816x - 896 | \( 2^{18}\cdot 7^{31}\cdot 67^{7} \) | 21T26 | Trivial (GRH) |
| 21.7.948784467301828652679243568312534649249988608.1 | x21 - 42x19 + 756x17 - 7616x15 - 20x14 + 47040x13 + 560x12 - 183456x11 - 6160x10 + 448448x9 + 33600x8 - 657588x7 - 94080x6 + 513240x5 + 125440x4 - 121184x3 - 62720x2 - 54432x - 3760 | \( -\,2^{18}\cdot 7^{30}\cdot 107^{7} \) | 21T26 | Trivial (GRH) |