( 0.000 000 000 000 0 −6 short scale: one quintillionth long scale: one trillionth) Mathematics: The odds of a perfect bracket in the NCAA Division I men's basketball tournament are 1 in 2 63, approximately 1.08 × 10 −19, if coin flips are used to predict the winners of the 63 matches.Mathematics: The probability of matching 20 numbers for 20 in a game of keno is approximately 2.83 × 10 −19.( 0.000 000 000 000 000 0 −7 short scale: one sextillionth long scale: one trilliardth) ( 0.000 000 000 000 000 000 0 −8 short scale: one septillionth long scale: one quadrillionth) ( 0.000 000 000 000 000 000 000 0 −9 short scale: one octillionth long scale: one quadrilliardth) Mathematics: The probability in a game of bridge of all four players getting a complete suit each is approximately 4.47 ×10 −28.Computing: The number 1.4 ×10 −45 is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value.Mathematics: The chances of shuffling a standard 52-card deck in any specific order is around 1.24 ×10 −68 (or exactly 1⁄ 52!).1 ×10 −101 is equal to the smallest non-zero value that can be represented by a single-precision IEEE decimal floating-point value.1.5 ×10 −157 is approximately equal to the probability that in a randomly selected group of 365 people, all of them will have different birthdays.4.9 ×10 −324 is approximately equal to the smallest non-zero value that can be represented by a double-precision IEEE floating-point value.1 ×10 −398 is equal to the smallest non-zero value that can be represented by a double-precision IEEE decimal floating-point value.3.6 ×10 −4951 is approximately equal to the smallest non-zero value that can be represented by an 80-bit x86 double-extended IEEE floating-point value.
6.5 ×10 −4966 is approximately equal to the smallest non-zero value that can be represented by a quadruple-precision IEEE floating-point value.1 ×10 −6176 is equal to the smallest non-zero value that can be represented by a quadruple-precision IEEE decimal floating-point value.Computing: 2.2 ×10 −78913 is approximately equal to the smallest non-zero value that can be represented by an octuple-precision IEEE floating-point value.However, demanding correct punctuation, capitalization, and spacing, the probability falls to around 10 −360,783. Mathematics – random selections: Approximately 10 −183,800 is a rough first estimate of the probability that a typing " monkey", or an English-illiterate typing robot, when placed in front of a typewriter, will type out William Shakespeare's play Hamlet as its first set of inputs, on the precondition it typed the needed number of characters.
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