tables > repunit > 21

Base 21 Repunits

Table

Viewing: 417 – 417 << prev next >>

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Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 417: \[{21^{417}-1\over20}\] 463 × 2503 × 21443809 × 4329622389913701641<19> × 687423001115670029908380379<27> × 1717466079724751615975579073185741<34> × 242224065084426595683370880085175862126081<42> × 248126091920645287176283880883366502408919085389410430715613361<63> × [1519218236914293963059381839853814564530391782883072813077056564950706439828141749702053048361027110862061814216458344772157238007330519442613257414049245451726837594804916104806190935697887139540233747567263777405267551978703679286534678513424810519445958329417473119689506552005571190067498886626090394172949213824275677912411127216249951723840193033343<355>]

Index range: 417 – 417 << prev next >>