
The prime factorization of 540 is . How do you find the number of divisors of 540 other than 1?
Answer
478.8k+ views
Hint: As the prime factorization of 540 is given. Use the concept of prime factorization to find the divisors of 540. After that subtract 1 from the total number of divisors to find the number of divisors of 540 other than 1.
Formula Used: If a number has the prime factorization as . Then the number of divisors of is .
Complete step-by-step answer:
We know that a divisor of a number is any number that leaves no remainder when is divided by it (or completely divides ).
We will find the total number of divisors of 540. For this, we need the prime factorization of 540:
As it is given that, the prime factorization of 540 is .
So, write the factorization in the exponent form,
We will calculate the total number of divisors of 540. We will substitute 2 for a, 3 for b, and 1 for c in the formula for the total number of divisors:
Add the terms in the brackets,
Multiply the terms,
The total number of divisors of 540 is 24.
Now subtract 1 from the total number of divisors to find the number of divisors of 540 other than 1.
Hence, the total number of divisors to find the number of divisors of 540 other than 1 is 23.
Note:
Whenever we face such a problem statement the key concept involved is simply to find all the factors of the given number now through those factors we can directly find the total number of divisors using the above-mentioned concept. The noted point here is the number of divisors obtained will always include 1 and the number itself.
Formula Used: If a number
Complete step-by-step answer:
We know that a divisor of a number
We will find the total number of divisors of 540. For this, we need the prime factorization of 540:
As it is given that, the prime factorization of 540 is
So, write the factorization in the exponent form,
We will calculate the total number of divisors of 540. We will substitute 2 for a, 3 for b, and 1 for c in the formula for the total number of divisors:
Add the terms in the brackets,
Multiply the terms,
The total number of divisors of 540 is 24.
Now subtract 1 from the total number of divisors to find the number of divisors of 540 other than 1.
Hence, the total number of divisors to find the number of divisors of 540 other than 1 is 23.
Note:
Whenever we face such a problem statement the key concept involved is simply to find all the factors of the given number now through those factors we can directly find the total number of divisors using the above-mentioned concept. The noted point here is the number of divisors obtained will always include 1 and the number itself.
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