Multiply each term by 3 to get the next one.
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The factors of 81 are numbers that can be multiplied together to give 81. The factors of 81 are 1, 3, 9, 27, and 81. Prime factors are the factors that are prime numbers. The prime factors of 81 are 3 and 3, or written as 3^4.
1 = 3^(0) 3 = 3^(1) 9 = 3^(2) x = 3^(3) 81 = 3^(4) Notice that the indices rise term by term. Hence x = 3^(3) = x = 27
27 and 81; 27 + 81 = 108, and 3 x 27 = 81
They are powers of 3. 729 = 36 243 = 35 81 = 34 27 = 33 9 = 32 3 = 31
Oh, dude, that's like some math stuff right there. So, if you're looking for a number that you can multiply by itself three times to get 81, you're basically asking for the cube root of 81. And guess what? The cube root of 81 is 3! So, yeah, 3 multiplied by itself three times equals 81. Math can be cool sometimes, I guess.