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Since 3 and 5 are both prime numbers, the only common factor of the two numbers is 1. Perhaps you are thinking of common multiples, the first two common multiples of the two numbers are 15 and 30.

Q: What are the first two common factors of 3 and 5?

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No. Prime factors of 27: 3 3 3 Prime factors of 45: 3 3 5 Both have two factors of 3, so the greatest common factor is 9.

The two common factors of 6 and 9 are 1 and 3.

All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors. 3 is a factor of 9. 3 is a factor of 15. 3 is a common factor of 9 and 15.

Factors of 81 are [3 3 3 3] Factors of 75 are [3 5 5] Common factors [3] ■

Common factors of 3 and 25 are: 1.

Related questions

9 and 21 only have two common factors: 1 and 3.

Common factors of 30 and 3 are: 1 and 3.

The common factors are: 1, 3

first three common factors of 3,4,5

Sorry, only two common factors! The common factors are: 1, 3

No. 18 and 36 are the two smallest common multiples of 6 and 9.The factors of 6 are 1, 2, 3, and 6 .The factors of 9 are 1, 3, and 9 .

The greatest common factor is 3: Factors of 9: 1, 3, 9 Factors of 18: 1, 2, 3, 6, 9, 18 Factors of 21: 1, 3, 7, 21 The two common factors are 1 and 3 and the greatest of these two is 3.

27 and 57 have two common factors: 1, 3.

The prime factors of 18 are 2, 3, and 3. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2, 3, and 3. Since 18 is a factor of 90, its prime factors will be the prime factors that the two numbers have in common.

There is neither a greatest common factor nor common factors of a single number, such as 3, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 3 are 1 and 3. The prime factor of 3 is 3. Examples: The common factors of 3 and 20 are only 1; the greatest common factor is 1. The common factors of 3 and 81 are 1 and 3; the greatest common factor is 3.

Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as 81, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 81 are 1, 3, 9, 27, and 81. Examples: The common factors of 18 and 81 are 1, 3, and 9; the greatest common factor is 9. The common factors of 20 and 81 are only 1; the greatest common factor is 1. The common factors of 39 and 81 are 1 and 3; the greatest common factor is 3. The common factors of 81 and 243 are 1, 3, 9, 27, and 81; the greatest common factor is 81.

Common factors of 99 and 33 are: 1, 3, 11, and 33.