Status of search for primes k.2ⁿ+1

601 < k < 699 & 1,000,000 < n < 1,500,000

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Color legend:

completed (X)

being tested

available

k \ n x 1000

1000-1020

1020-1040

1040-1060

1060-1080

1080-1100

1100-1120

1120-1140

1140-1160

1160-1180

1180-1200

1200-1220

1220-1240

1240-1260

1260-1280

1280-1300

1300-1320

1320-1340

1340-1360

1360-1380

1380-1400

1400-1420

1420-1440

1440-1460

1460-1480

1480-1500

601

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603

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605

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607

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609

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611

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613

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615

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617

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619

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621

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623

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625

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627

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629

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631

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633

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647

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649

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667

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669

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671

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677

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679

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681

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