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MATH / Emma plays with her square unit tiles by arranging all of them into different…

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problem

Emma plays with her square unit tiles by arranging all of them into different shaped rectangular figures. (For example, a 55 by 77 rectangle would use 3535 tiles and would be considered the same rectangle as a 77 by 55 rectangle). Emma can form exactly ten different such rectangular figures that each use all of her tiles. What is the least number of tiles Emma could have?
Plain-text mathematical notation (without MathML)
Emma plays with her square unit tiles by arranging all of them into different shaped rectangular figures. (For example, a 5 by 7 rectangle would use 35 tiles and would be considered the same rectangle as a 7 by 5 rectangle). Emma can form exactly ten different such rectangular figures that each use all of her tiles. What is the least number of tiles Emma could have?
Original LaTeX notation
Emma plays with her square unit tiles by arranging all of them into different shaped rectangular figures. (For example, a $5$ by $7$ rectangle would use $35$ tiles and would be considered the same rectangle as a $7$ by $5$ rectangle). Emma can form exactly ten different such rectangular figures that each use all of her tiles. What is the least number of tiles Emma could have?

level

Level 5

type

Number Theory

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