# Definition:Prime Number/Historical Note

## Historical Note on Prime Number

The concept of classifying numbers as **prime** or **composite** appears to have originated with the Pythagoreans.

The seemingly random and irregular distribution of the primes has challenged mathematicians since ancient times.

*Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.*- -- Leonhard Paul Euler, $1751$

## Sources

- 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.2$: Pythagoras (ca. $580$ – $500$ B.C.) - 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.31$: Chebyshev ($1821$ – $1894$)