850
forum
Count to 1000, then back, then repeat...[Round 12]
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851
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eight fiddy six
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Topic Starter
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ottehundrede en og halvfjerds (871)
874 = 2 × 19 × 23, sum of the first twenty-three primes, sum of the first seven factorials from 0, nontotient, Harshad number, happy number
5³ × 7 = 875
Bandai Namco (876)
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