Introduction to PESEL Numbers

PESEL numbers are unique identifiers assigned to each physical person in Poland. These numbers are crucial for various administrative and identification purposes. In this article, we will delve into the world of PESEL numbers, exploring their structure, significance, and how they are generated.

Structure of a PESEL Number

A PESEL number consists of 11 digits, each carrying specific information:

• The first six digits represent the date of birth in the YYMMDD format.
• The next four digits are a serial number that identifies individuals born on the same day, with odd numbers assigned to men and even numbers to women.
• The last digit is a control digit, calculated from the previous ten digits to ensure the number's correctness.

Calculating the Control Digit

The control digit is calculated using a specific algorithm: [ (9y_1 + 7y_2 + 3m_1 + m_2 + 9d_1 + 7d_2 + 3s_1 + s_2 + 9s_3 + 7s_4) \mod 10 ] where (y_1, y_2, m_1, m_2, d_1, d_2, s_1, s_2, s_3, s_4) represent the digits of the year, month, day of birth, and serial number, respectively.

Significance of PESEL Numbers

PESEL numbers are essential for various aspects of life in Poland, including:

• Identification purposes
• Administrative tasks
• Access to public services
• Employment and healthcare

Generating PESEL Numbers

For those interested in generating PESEL numbers for testing or administrative purposes, online tools like the Poland: PESEL numbers generator can be useful. These tools allow users to generate random PESEL numbers based on given criteria such as date of birth, age range, or gender.

Examples of PESEL Numbers

• Example 1: PESEL number 84011201654 indicates a birthdate of January 12, 1984, with a serial number of 0165, belonging to a male.
• Example 2: PESEL number 03231256844 indicates a birthdate of March 12, 2003, with a serial number of 5684, belonging to a female.

Conclusion

PESEL numbers play a vital role in Poland's administrative and identification systems. Understanding their structure and significance can be beneficial for both citizens and foreigners dealing with Polish bureaucracy. For more information on PESEL numbers and related topics, visit Calculla or explore external resources like Wikipedia and Poland Unraveled.