Q: What is the least common factor for 3 9 and 15?

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There is no least common factor but the least common multiple is 15.

The least common multiple is 30. The greatest common factor is 3.

The least common factor of 3 and 12 is 3 though in reality, the least common factor between any two numbers is 1.

The least common factor of any set of numbers is 1.

You need at least two numbers to find something in common. If that's 12 and 15, the answer is 3.

Related questions

The least common factor of any set of integers is 1.

There is no least common factor but the least common multiple is 15.

The least common factor of any set of integers is 1.

It is 1 but the highest common factor is 3

The least common factor of any set of positive integers is 1.

The least common factor of any set of integers is 1.

Most of the time, math questions are about the greatest common factor or the least common multiple, not the least common factor. The least common factor of any two numbers would typically be 1. The factors of 15 are 1, 3, 5, and 15. The factors of 9 are 1, 3, and 9. The greatest common factor is 3. The prime factors of 15 are 3 and 5. The prime factors of 9 are 3 and 3. So, take the 3 and 5 prime factors of 15, and then the second 3 prime factor of 9, multiply them together, so 3 x 5 x 3 = 45 is the least common multiple.

The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.

The least common multiple of two numbers is the product of the two numbers divided by their greatest common factor. The greatest common factor of 15 and 39 is 3. Therefore, the least common multiple of 15 and 39 is 15 x 39 ÷ 3 = 195.

The factors of 9 are 1, 3, and 9. The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 15 are 1, 3, 5, and 15. The common factors of 9, 12, and 15 are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1.

The least common factor of any set of integers is 1.

3 and 45, respectively.