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📰 Thus, the value is $ oxed{133} $.Question: How many lattice points lie on the hyperbola $ x^2 - y^2 = 2025 $? 📰 Solution: The equation $ x^2 - y^2 = 2025 $ factors as $ (x - y)(x + y) = 2025 $. Since $ x $ and $ y $ are integers, both $ x - y $ and $ x + y $ must be integers. Let $ a = x - y $ and $ b = x + y $, so $ ab = 2025 $. Then $ x = rac{a + b}{2} $ and $ y = rac{b - a}{2} $. For $ x $ and $ y $ to be integers, $ a + b $ and $ b - a $ must both be even, meaning $ a $ and $ b $ must have the same parity. Since $ 2025 = 3^4 \cdot 5^2 $, it has $ (4+1)(2+1) = 15 $ positive divisors. Each pair $ (a, b) $ such that $ ab = 2025 $ gives a solution, but only those with $ a $ and $ b $ of the same parity are valid. Since 2025 is odd, all its divisors are odd, so $ a $ and $ b $ are both odd, ensuring $ x $ and $ y $ are integers. Each positive divisor pair $ (a, b) $ with $ a \leq b $ gives a unique solution, and since 2025 is a perfect square, there is one square root pair. There are 15 positive divisors, so 15 such factorizations, but only those with $ a \leq b $ are distinct under sign and order. Considering both positive and negative factor pairs, each valid $ (a,b) $ with $ a 📰 e b $ contributes 4 lattice points (due to sign combinations), and symmetric pairs contribute similarly. But since $ a $ and $ b $ must both be odd (always true), and $ ab = 2025 $, we count all ordered pairs $ (a,b) $ with $ ab = 2025 $. There are 15 positive divisors, so 15 positive factor pairs $ (a,b) $, and 15 negative ones $ (-a,-b) $. Each gives integer $ x, y $. So total 30 pairs. Each pair yields a unique lattice point. Thus, there are $ oxed{30} $ lattice points on the hyperbola. 📰 You Wont Believe What This Milwaukee M18 Battery Powers In Seconds 3866673 📰 Fast Easylooksmax Tips To Crush Your Beauty Game Steal All The Attention 6862614 📰 Crazy Bikes Grossed Out Gamers This Hidden Gaming Mechanic Will Shock You 7325210 📰 Only If Duration Is Multiple Of Frame Rate 5616900 📰 La La Anthony 2681811 📰 Where Mediterranean Sea 2583513 📰 Lightweight Powerful Java Development Kit For Linux Improves Your Coding Game Now 1706975 📰 From Flat Locks To Voluminous Curls Hair With Clay Put This Trend To The Test 3295915 📰 What Is A Self Directed Retirement Account 4188927 📰 Waterstone Bank Launches Shocking New Service That Will Rewire Your Money Habits 5910453 📰 Burning Man Festivali 3459852 📰 Gc Meaning Explained The Surprising Definition Thats Taking The Internet By Storm 3134618 📰 Unlock The Surprising Benefits Of Wwwaolcom Youve Never Seen Before 5266012 📰 Mean For Sample Data 9401656 📰 Mike Savoie Dealership 3432612