Lottery: The odds of winning the Grand Prize (matching all 6 numbers) in the US Powerball Multistate Lottery, with a single ticket, under the current rules, are 120,526,770 to 1 against, for a probability of 8 × 10-9.
Lottery: The odds of winning the Jackpot (matching the 6 main numbers) in the UK National Lottery, with a single ticket, under the current rules, are 13,983,816 to 1 against, for a probability of 7 × 10-8.
10-6
Poker: The odds of being dealt a royal flush in poker are 649,739 to 1 against, for a probability of 1.5 × 10-6
Poker: The odds of being dealt a straight flush (other than a royal flush) in poker are 72,192 to 1 against, for a probability of 1.4 × 10-5
Poker: The odds of being dealt a four of a kind in poker are 4,164 to 1 against, for a probability of 2.4 × 10-4
Poker: The odds of being dealt a full house in poker are 693 to 1 against, for a probability of 1.4 × 10-3
10-3
Poker: The odds of being dealt a flush in poker are 508 to 1 against, for a probability of 1.9 × 10-3
Poker: The odds of being dealt a straight in poker are 254 to 1 against, for a probability of 4 × 10-3
HIV: About 1.2% of all 15-49 year-old humans were infected with HIV at the end of 2001
Lottery: The odds of winning any prize in the UK National Lottery, with a single ticket, under the current rules, are 54 to 1 against, for a probability of about 1.8%
Poker: The odds of being dealt a three of a kind in poker are 46 to 1 against, for a probability of 2.1%
Lottery: The odds of winning any prize in the US Powerball Multistate Lottery, with a single ticket, under the current rules, are 36.06 to 1 against, for a probability of 2.8%
Poker: The odds of being dealt two pair in poker are 20 to 1 against, for a probability of 4.8%.
10-1
Poker: The odds of being dealt only one pair in poker are about 4 to 3 against (1.37 to 1), for a probability of 0.42 (42%).
Poker: The odds of being dealt no pair in poker are nearly 1 to 1, for a probability of about 0.5 (50%).
Geographic places: The NIMA GEOnet Names Server contains approximately 3.88 million named geographical features outside the United States, with 5.34 million names. The USGS Geographic Names Information System claims to have almost 2 million physical and cultural geographic features within the United States.
Species: The World Resources Institute claims that approximately 1.4 million species have been named, out of an unknown number of total species (estimates range between 2 and 100 million species).
Playing cards: There are 2,598,960 different 5-card poker hands that can be dealt from a standard 52-card deck.
Web sites: as of July 2003, the Netcraft web survey estimates that there are 42 million distinct web sites
Compact Disc: Depending on type and other factors, a compact disk contains about 600-750 million bytes of information. A modern computer CD drive can read or write this information in a few minutes.
Stars in the observable universe: there are very approximately estimated to be 7 × 1022stars in the observable universe, based on galaxy counts and star estimates: molecules in one mole of any substance (Avogadro's number)
1024
1027
Atoms in the human body: the average human body contains roughly 7×1027 atoms, see [1]
Fundamental particles in the observable universe: various sources estimate the total number of fundamental particles in the observable universe in the range 1080 to 1085. However, these estimates are best regarded as guesswork.
104,053,946, order of magnitude of largest known prime number, as of Q3 2003. Proving prime numbers with a thousand to several tens of thousands of decimal digits, depending on special form, can be done in minutes on modern computers.
1080,000,000,000,000,000, largest named number in Archimedes' Sand Reckoner
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