3 x 27
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It is a square number because 9 times 9 equals 81
No, 81 is not in the 2 times tables. In the 2 times tables, each number is multiplied by 2, resulting in even numbers. 81 is not an even number, as it is divisible by 3, making it part of the 3 times tables.
The number that multiplied by 32 would equal 81 is 2.53125.
2 x 40.5 = 81
3 times 3 times 3 times 3