The number that, when multiplied by itself, equals 1.21 is 1.1. This is because 1.1 multiplied by 1.1 equals 1.21. In mathematical terms, 1.1^2 = 1.21.
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eleven 11 x 11 = 121 121 x 11 = 1331
√121 = 11 → 11 × 11 = 121 Also: -11 × -11 = 121
121!
To find another pair of numbers that multiply to 121, we need to factorize 121. The factors of 121 are 1, 11, and 121. Therefore, besides 11 times 11, 1 times 121 also equals 121.
This is easy. All you need to know is your 11 times table. 11 times 11 equals 121