25 and 49.
81 + 16
2000 2000
16 -9
big cheese
They are: 100-16 = 84
A square number will have one factor pair that consists of the same number (the square root). In the list of factors, that number will be written once.
a square number
It's a square number. Square numbers have a factor pair that is the same number twice. When listed, that number occurs once.
A square number
8464 and 3364
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