UPSIDE-DOWN DIVISION OF 81

Upside-down division of 81 is shown below.

(81 = 3⁴)

DESCRIPTIONS

81 is divisible by 3. Write 3 to the left. When 81 is divided by 3 the result is 27. Write 27 under 81
27 is divisible by 3. Write 3 to the left. When 27 is divided by 3 the result is 9. Write 9 under 27
9 is divisible by 3. Write 3 to the left. When 9 is divided by 3 the result is 3. Write 3 under 9
3 is divisible by 3. Write 3 to the left. When 3 is divided by 3 the result is 1. Write 1 under 3

OTHER INFORMATION

The only prime factor of 81 is 3
Prime factorization of 81 is as following.

Without Exponents: 81 = 3 × 3 × 3 × 3
With Exponents:81 = 3⁴

INFORMATION

The solution and descriptions above are generated by the upside-down division calculator. You can use the upside-down division calculator to see the upside-down division of other numbers.

UPSIDE-DOWN DIVISION CALCULATOR
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UPSIDE-DOWN DIVISION

Upside-down division is a method used to find the prime factors and prime factorization of a number.

In this method, we draw a rectangular line and write the number on the RHS. Then we try to find a prime number that divides the number on the right. Once we find such a prime number, we write it on the left. We make the division and write the result under the number. on the RHS and continue the algorithm until we reach 1 on the RHS.

The numbers on the LHS are the prime factors. The prime factorization can be found by multiplying those prime numbers.