It is 2178, of course!
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121 = 11^2 or 11 x 11Prime Factorization of 121= 11x 11prime factoriization of 121 = 11 x 11
The factors of 121 are 1, 11 and 121
(51*1=51)51*2=10251*3=15351*4=20451*5=255
11 time 11 will give you that answer How did you not know that already
1, 2, 11, 22, 121, 242 | 1 x 242, 2 x 121, 11 x 22.