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11111...11111 (25-digits) (another Prime Pages' Curiosity) |
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)
1 1 1 1 1
1 8 8 8 1
1 8 8 8 1
1 8 8 8 1
1 1 1 1 1
The only strobogrammatic and tetradic square-congruent prime of order 5. [Ward]
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