(NEXSTAR) – Regardless of how 2025 turns out, it’s no ordinary year. The year 2025 is a “perfect square year” because it’s the product of a number multiplied by itself – 45×45=2025, a phenomenon that ...

I learnt something new and interesting recently. Most puzzle solvers, including you readers of Problematics, probably know this already, but here it is anyway. To check if a number is a perfect square ...