Yes, because 9x9=81 9 divides into 3 three times 3x3=9 So if 9 is a factor of 81, then so must 3. 81/3= 27
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81
The only prime factor of 81 is: 3.The prime factors of 225 are: 3 and 5.
81 as 162=2x81=2x34 fourth root of 81 is 3
81 = 3 x 27 = 3 x 3 x 9 = 3 x 3 x 3 x 3
81 is.