28th May 2024

Count up to 1023 just by using your fingers

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It is possible to count up to 1023 just by using the fingers of two hands. By applying Binary system it is possible to count up to 1023 just by using the fingers of two hands. It employs two digits, 0 and 1. If a finger or a thumb standing up indicates ‘1’ and standing down indicates ‘0’, then all fingers/thumbs standing up will indicate 1111111111, whose decimal system equivalent is

29 × 1 + 28 × 1 + 27 × 1 + 26 × 1 + 25 × 1 + 24 × 1 + 23 × 1 + 22 × 1 +
21 × 1 + 20 × 1 = 512 + 256 + 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1 = 1023

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