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10 12 petagram (Pg) 0.8–2.1 × 10 12 kg Global biomass of fish [114] 4 × 10 12 kg Global annual human food production [115] 4 × 10 12 kg World crude oil production in 2009 (3,843 Mt) [116] 5.5 × 10 12 kg A teaspoon (5 ml) of neutron star material (5000 million tonnes) [117] 10 13: 1 × 10 13 kg Mass of comet 67P/Churyumov–Gerasimenko ...
Mathematics – 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 (0.000 15%). [9] Mathematics – 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 (0.0014%).
This is a list of articles about prime numbers.A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there are an infinite number of prime numbers.
The book includes some irrational numbers below 10 but concentrates on integers, and has an entry for every integer up to 42. The final entry is for Graham's number . In addition to the dictionary itself, the book includes a list of mathematicians in chronological sequence (all born before 1890), a short glossary , and a brief bibliography .
10 −1: Deci-(d) 1.6×10 −1: Gaussian distribution: probability of a value being more than 1 standard deviation from the mean on a specific side [20] 1.7×10 −1: Chance of rolling a '6' on a six-sided die: 4.2×10 −1: Probability of being dealt only one pair in poker 5.0×10 −1: Chance of getting a 'head' in a coin toss.
The first: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 (sequence A005843 in the OEIS). An odd number does not have the prime factor 2. The first: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23 (sequence A005408 in the OEIS). All integers are either even or odd. A square has even multiplicity for all prime factors (it is of the form a 2 for some a).
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
0, 1, 3, 6, 2, 7, 13, 20, 12, 21, 11, 22, 10, 23, 9, 24, 8, 25, 43, 62, ... "subtract if possible, otherwise add" : a (0) = 0; for n > 0, a ( n ) = a ( n − 1) − n if that number is positive and not already in the sequence, otherwise a ( n ) = a ( n − 1) + n , whether or not that number is already in the sequence.