There is no "last digit" of pi. Pi is irrational. Irrational numbers go in forever; like infinity
Normalized floating point numbers have a single leading non-zero digit and a fixed exponent range, while denormalized floating point numbers have a leading zero digit and a smaller range of exponents.
It depends what station you listen to and where in the world you are.
The 10-digit significand in floating-point arithmetic is significant because it determines the precision of the numbers that can be represented. A larger number of digits allows for more accurate calculations and reduces rounding errors in complex computations.
Radix sort is a non-comparative sorting algorithm that works by grouping elements by their individual digits. It sorts elements by comparing digits at different positions in the numbers, starting from the least significant digit to the most significant digit. This process is repeated for each digit position until all elements are sorted. Radix sort is efficient because it does not rely on comparisons between elements, making it faster than comparison-based sorting algorithms for certain types of data.
Phone numbers vary by carrier. The type is typically a three digit area code numbers 0-9 first then the location numbers that are typically seven digits 0-9. Once a call is places the phone will ring.
Without restrictions, it was would numbers 000-000-0000 through 999-999-9999. So that would be 9,999,999,999 + 1 = 10 billion different 10-digit phone numbers. Ex: If there existed single digit phone numbers, there would be 10, because the digits are 0 through 9. If there existed only double digit phone numbers, then it would be 00 through 99 which would be 100 total two-digit numbers. Therefore the total possible combinations for an X digit phone number would be: 10^X
There are no 3 digit numbers between 0 and 9 because 0 and 9 are 1 digit numbers.
There are 9 digits that can be the first digit (1-9); for each of these there is 1 digit that can be the second digit (6); for each of these there are 10 digits that can be the third digit (0-9); for each of these there are 10 digits that can be the fourth digit (0-9). → number of numbers is 9 × 1 × 10 × 10 = 900 such numbers.
Add "+65" and then the phone number behind. Singapore phone numbers are 8-digit, and office/home numbers begin with 6, mobile numbers begin with 9, and the newer mobile numbers, 8.
10 digit numbers
7
The transition to 9-digit telephone numbers in Brazil was completed on January 7, 2016. This change was implemented to accommodate the increasing demand for phone numbers, particularly with the rise of mobile phones. The new format included an additional digit for mobile numbers, which became a standard across the country.
In the 1940s, phone numbers typically consisted of a three-digit area code followed by a seven-digit local number, such as "ABC-1234." This format differed from modern phone numbers, which generally have a three-digit area code followed by a seven-digit local number, such as "(123) 456-7890."
You can select 9 numbers for the first digit, 8 numbers for the second digit, and 7numbers for the third digit; so 504 (e.g. 9*8*7) different three digit numbers can be written using the digits 1 through 9.
There are 9 possible numbers for the first digit (one of {1, 2, ..., 9}); with 9 possible digits for the second digit (one of {0, 1, 2, ..., 9} which is not the first digit)); with 8 possible digits for the third digit (one of {0, 1, 2, ..., 9} less the 2 digits already chosen); This there are 9 × 9 × 8 = 648 such numbers.
There are 16 4-digit numbers that can be made up from 9 and 6.