Answer:121
Explanation:
1 = 1²
9 = 3²
25 = 5²
49 = 7²
81 = 9²
Rewriting the pattern -- 1², 3², 5², 7², 9²,.....
So the next number will be -- 11² = 121
Answer:
121
this is a sequence of prime numbers
1×1=1,3×3=9, 5×5=25, 7×7=49,9×9=81,11×11=121
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