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The factors of 81 are 1, 3, 9, 27, and 81.

The factors of 243 are 1, 3, 9, 27, 81, and 243.

The common factors of 81 and 243 are 1, 3, 9, 27, and 81. Therefore, the least common factor (the smallest common factor) is 1.

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Q: What is the least common factor of 81 and 243?
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What are all common factors of 243?

There cannot be a common factor of just one number. To be common, there needs to be at least two numbers; howver, the factors of 243 are 1, 3, 9, 27, 81, and 243.


What are the factors of 243?

The positive integer factors of 243 are 1, 3, 9, 27, 81, and 243 The factor pairs of 243 are (1, 243), (3, 81), and (9, 27).


What is the least common factor of 45 and 81?

The least common factor of any numbers is typically 1. The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. The least (smallest) common factor is 1.


What is the HCF of 81 243 and 1215?

To find the highest common factor (HCF) of 81, 243, and 1215, we first need to find the prime factorization of each number. The prime factorization of 81 is 3^4, 243 is 3^5, and 1215 is 3^5 * 5. To find the HCF, we look for the highest power of each prime factor that appears in all the numbers. In this case, the highest power of 3 that appears in all three numbers is 3^4, so the HCF of 81, 243, and 1215 is 81.


What are the factors and prime factors of 243?

243 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 243 are 1,2,3,4,9,27,81, and 243.The factor pairs of 243 are 1 x 243, 3 x 81, and 9 x 27.The proper factors of 243 are 1, 3, 9, 27, and 81 or,if the definition you are using excludes 1, they are 3, 9, 27, and 81.The prime factors of 243 are 3, 3, 3, 3, and 3. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The distinct prime factor (listing each prime factor only once) of 243 is 3.The prime factorization of 243 is 3 x 3 x 3 x 3 x 3 or, in exponential form, is 35.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.

Related questions

What are all common factors of 243?

There cannot be a common factor of just one number. To be common, there needs to be at least two numbers; howver, the factors of 243 are 1, 3, 9, 27, 81, and 243.


What is the greatest common factor of 81 and 243 42?

The GCF is 3.


What is the least common multiple of 81 and 243?

The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 81 and 243 is 243.


What is the greatest common factor and least common multiple of 27 and 81?

The Greatest Common Factor (GCF) of (27,81) is 27 and the LCM is 81.


What are the greatest common factor and least common multiple of 27 and 81?

The Lcm of 27 and 81 is 81, and the GCF of 27 and 81 is 27


What is the greatest common factor and the least common multiple of 27 and 81?

GCF = 27 LCM = 81 81 is the LCM of 27 and 81


What are the factors of 243?

The positive integer factors of 243 are 1, 3, 9, 27, 81, and 243 The factor pairs of 243 are (1, 243), (3, 81), and (9, 27).


What is a lowest common multiple of 81 and 243?

The LCM is: 243


What is the least common factor of 45 and 81?

The least common factor of any numbers is typically 1. The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. The least (smallest) common factor is 1.


What are the least common factors of 13 and 81?

The only common factor is 1.


What is the HCF of 81 243 and 1215?

To find the highest common factor (HCF) of 81, 243, and 1215, we first need to find the prime factorization of each number. The prime factorization of 81 is 3^4, 243 is 3^5, and 1215 is 3^5 * 5. To find the HCF, we look for the highest power of each prime factor that appears in all the numbers. In this case, the highest power of 3 that appears in all three numbers is 3^4, so the HCF of 81, 243, and 1215 is 81.


What is the largest square factor of 243?

Well, isn't that a happy little math problem we have here. The largest square factor of 243 is 81. You see, 81 is a square number because it's the result of multiplying 9 by 9, and it's also a factor of 243 because 81 times 3 equals 243. Just remember, there are no mistakes in math, only happy little solutions waiting to be discovered.