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# What is the least common factor of 81 and 243?

Updated: 4/28/2022 Wiki User

14y ago

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. Wiki User

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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.

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 largest square factor of 243?

Since 243 = 35, the largest square factor is 34 = 81.

### 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 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 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 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).

The LCM is: 243

### What are the least common factors of 13 and 81?

The only common factor is 1.

### 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 Least common factor of 64 and 81?

The factors of 64 are all 2s and the factors of 81 are all 3s. The greatest common factor is 1, since they have no factors in common. &#9632;