UPSIDE-DOWN DIVISION OF 90

Upside-down division of 90 is shown below.

(90 = 2 × 3² × 5)

DESCRIPTIONS

90 is divisible by 2. Write 2 to the left. When 90 is divided by 2 the result is 45. Write 45 under 90
45 is divisible by 3. Write 3 to the left. When 45 is divided by 3 the result is 15. Write 15 under 45
15 is divisible by 3. Write 3 to the left. When 15 is divided by 3 the result is 5. Write 5 under 15
5 is divisible by 5. Write 5 to the left. When 5 is divided by 5 the result is 1. Write 1 under 5

OTHER INFORMATION

The prime factors of 90 are 2, 3 and 5
Prime factorization of 90 is as following.

Without Exponents: 90 = 2 × 3 × 3 × 5
With Exponents:90 = 2 × 3² × 5

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.