This website contains problems from math contests. Problems and corresponding tags were obtained from the Art of Problem Solving website.

Tags were heavily modified to better represent problems.

AND:
OR:
NO:

Found problems: 4

PEN E Problems, 5

Prove that $\frac{5^{125}-1}{5^{25}-1}$ is a composite number.

1992 IMO Longlists, 44

Prove that $\frac{5^{125}-1}{5^{25}-1}$ is a composite number.

1992 IMO Shortlist, 16

Prove that $\frac{5^{125}-1}{5^{25}-1}$ is a composite number.

1993 Moldova Team Selection Test, 1

Prove that $\frac{5^{125}-1}{5^{25}-1}$ is a composite number.