When a natural number is multiplied by itself. The result is called a perfect square. Since 1×1 = 1, 2×2=4,

When a natural number is multiplied by itself. The result is called a perfect square. Since 1×1 = 1, 2×2=4, 3×3=9 and so on, then the numbers 1,4,9 etc are perfect squares. Using this knowledge work out which year in the 18th century (the years 1701 through to 1800) was a perfect square?


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