What are all the factors of 12 and 18?

What is the Greatest Common Factor?

• Factors for 12: 1, 2, 3, 4, 6, and 12.
• Factors for 18: 1, 2, 3, 6, 9, and 18.

Do 12 and 18 have a common multiple?

The LCM of 12 and 18 is 36. To find the LCM (least common multiple) of 12 and 18, we need to find the multiples of 12 and 18 (multiples of 12 = 12, 24, 36, 48; multiples of 18 = 18, 36, 54, 72) and choose the smallest multiple that is exactly divisible by 12 and 18, i.e., 36.

What are the common multiple of 12 and 18 using listing method?

Look at the common multiples of 12 and 18 listed on slide number 9. The smallest is 36, so 36 is the LCM of 12 and 18.

What are common numbers of 18?

The factors of 18 are 1, 2, 3, 6, 9, 18. The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9.

How do you find the highest common factor of 12 and 18?

FAQs on HCF of 12 and 18 The HCF of 12 and 18 is 6. To calculate the Highest common factor of 12 and 18, we need to factor each number (factors of 12 = 1, 2, 3, 4, 6, 12; factors of 18 = 1, 2, 3, 6, 9, 18) and choose the highest factor that exactly divides both 12 and 18, i.e., 6.

What are common factors of 12?

The factors of 12, for example, are 1, 2, 3, 4, 6 and 12. You can divide 12 by any of these numbers and obtain another whole integer number. Each of the numbers can be divided by 1, 3, 9, and 27, so you can say that these numbers are common factors of the set of numbers 27, 54, and 81.

What is the LCM and HCF of 12 and 18?

Factors of 12 = 1, 2, 3, 4, 6 and 12. Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

What is the 3rd common multiple of 12 and 18?

Answer: The first three common multiples of 6 and 8 are 24, 48, and 72. And, the first three common multiples of 12 and 18 are 36, 72, and 108.

What are the factors of 12?

The factors of 12 are 1, 2, 3, 4, 6, and 12, because each of those divides 12 without leaving a remainder (or, alternatively, each of those is a counting number that can be multiplied by another counting number to make 12).

Which number is a factor of 18?

According to the definition of factors, the factors of 18 are 1, 2, 3, 6, 9, and 18. So,18 is a composite number as it has more factors other than 1 and itself.

What is the common factor of 18 and 32?

2 common factors
There are 2 common factors of 18 and 32, that are 1 and 2. Therefore, the greatest common factor of 18 and 32 is 2.