
Largest prime factor
Problem 3
Published on Friday, 2nd November 2001, 06:00 pm; Solved by 192335The prime factors of 13195 are 5, 7, 13 and 29.
What is the largest prime factor of the number 600851475143 ?

The prime factors of 13195 are 5, 7, 13 and 29.
What is the largest prime factor of the number 600851475143 ?