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Pi Digits 3.14159…

Tool to search for numbers in decimals of the constant Pi = 3.14159. Pi contains (until proven otherwise) an infinite number of decimals among which, maybe, all numbers or sequences of digits.


Pi Digits 3.14159… -

Tag(s) : Mathematics, Fun/Miscellaneous

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Pi Digits 3.14159…

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Answers to Questions (FAQ)

What are Pi decimals? (Definition)

The decimals of Pi refer to the digits following the decimal point in the decimal representation of the number Pi (π). Pi is a mathematical constant that represents the ratio of a circle's circumference to its diameter. Its approximate value is 3.14159…, but its decimals are infinite and not periodic.

It is even conjectured that Pi is a universe number, that is to say a number whose decimals contain any finite series of digits.

How to find a number in Pi?

To find a pattern of digits among the decimals of Pi, there is no quick formula to access a specific decimal (in base 10), the most obvious way is to calculate the decimals and iterate through them in order .

Consequently, it is not possible to predict the position of a digit or a number in the circle constant π.

Example: 1 can be found in position 1 and 3 in 3.14159…

For dCode the first decimal 1 in 3.14159 is in position 1. Some programs take the position 0 (some computers count from 0), others take the position 2 (counting the number 3 before the decimal point/dot as the position 1).

What is the Nth digit of Pi?

Pour calculer le N-ième chiffre de Pi, il existe la formule de Bellard, qui permet de calculer la n-ième décimale de Pi en base 2 (ou 4, 8 ou 16).

For base 10, the only way is to calculate the first N decimals. dCode has already done this job, use the form to find the digit in position N.

How many digits are there in Pi decimals?

There are an infinite number of decimal places in the number Pi (it is irrational and non periodic). Computers calculate new ones daily. dCode knows the pi decimals until 1000000 (one million digits of pi).

Does pi contain all the numbers?

A number in which all other numbers can be found is called a rich number. Today it is not mathematically proven that Pi is a rich/disjunctive number.

If dCode does not find a number or a date, it is probably that it is beyond the first 1 million decimals.

How many digits of Pi have been calculated? (Records)

Records are constantly improving, but the latest results are:

20092700 billions
20105000 billions
201110 trillions
201312.1 trillions
201413.3 trillions
201622.459 trillions
202050 trillions
202162.8 trillions
2022100 trillions
2024105 trillions

How to efficiently calculate digits of Pi?

World records use the formula of the Chudnovsky brothers $$ \frac{1}{\pi} = 12 \sum^\infty_{k=0} \frac{(-1)^k (6k)! (13591409 + 545140134k)}{(3k)!(k!)^3 640320^{3k + 3/2}} $$

More generally, Spigot's algorithms allow numbers to be calculated sequentially, thus increasing the precision at each step of the algorithm.

To calculate the first decimals, Leibniz's formula for Pi is quickly implemented in pseudocode:// pseudo-code
function generatePi() {
piApproximation = 0.0
sign = 1
for (i = 0 ; i < 1000000 ; i++) {
piApproximation += sign / (2 * i + 1)
sign = -sign
piApproximation = 4 * piApproximation
return piApproximation

On the other hand the convergence is very slow, 300 iterations are necessary for only 2 decimals.

Where to download Pi decimals?

The 100 tiillion first decimal places of pi are available on a Google server here but for information, in order to download them, provide a hard drive of 82 Tb (82,000 Giga-bytes)

What are the last digits of Pi?

The number Pi has an infinite number of digits after the decimal point. Talking about Pi's latest digits is a mathematician's joke.

However, for information, the last 100 digits of Pi calculated (2022 record) are: 4, 2, 9, 3, 0, 2, 4, 2, 3, 5, 1, 4, 1, 4, 4, 0, 6, 0, 6, 8, 5, 3, 2, 0, 6, 9, 4, 5, 0, 7, 8, 4, 8, 7, 7, 6, 1, 7, 1, 6, 2, 4, 4, 4, 7, 2, 8, 5, 0, 0, 1, 4, 3, 2, 3, 6, 0, 8, 7, 5, 9, 4, 6, 3, 9, 7, 8, 3, 1, 4, 2, 9, 9, 9, 1, 8, 6, 6, 5, 7, 8, 3, 6, 4, 6, 6, 4, 8, 4, 0, 8, 5, 5, 8, 3, 7, 3, 9, 2, 6 and therefore the last (known) digit of Pi is 6 (six).

What is the Feynman point in the decimals of Pi?

The Feynman point is a sequence of six consecutive 9s (999999) that appears early in the decimal places of Pi, precisely at the 762nd decimal place. Richard Feynman, a renowned physicist, mentioned this phenomenon as a mathematical curiosity and pointed out that he would like to memorize and recite the decimals of π until he arrives at nine,nine,nine,nine,nine,nine to finish with and so on! in order to make a layman who would listen to him believe that π is a rational number.

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Cite as source (bibliography):
Pi Digits 3.14159… on [online website], retrieved on 2024-06-24,

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