The LCM of 12 and 18 divided by their GCF is 36 divided by 6 = 6.
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 28 and 48 is 4. Therefore, the least common multiple is 28 x 48 ÷ 4 = 336.
The LCM of 20 and 52 is 260. The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 20 and 52 is 4, so their least common multiple is 20 x 52 ÷ 4 = 260.
The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 1386 and 2058 is 42. (See related question for information on finding their GCF.) So, the least common multiple is 1386 x 2058 ÷ 42 = 67,914.
The LCM of 14 and 63 is 126. 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 14 and 63 is 7, so the least common multiple is 14 x 63 ÷ 7 = 126.
Since 70 is a multiple of 14, it is the least common multiple. Or, you can determine it as you would any pair of numbers. 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 14 and 70 is 14. Therefore, the least common multiple 14 x 70 ÷ 14 = 70.
90/2 = 45
The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 44 and 60 is 4, so the least common multiple is 44 x 60 ÷ 4 = 660.
The least common multiple is the product of the two numbers divided by their greatest common factor. Their greatest common factor is 8, so the least common multiple is 56 x 64 ÷ 8 = 448.
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 5 and 23 is 1. (See related question "What is the greatest common factor of 5 and 23?" for this calculation.) So, the least common multiple is 5 x 23 ÷ 1 = 115.
Yes.
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 28 and 48 is 4. Therefore, the least common multiple is 28 x 48 ÷ 4 = 336.
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 7 and 159 is 1, so the least common multiple is 7 x 159 ÷ 1 = 1113.
30 divided by 3 equals 10.
The LCM of 20 and 52 is 260. The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 20 and 52 is 4, so their least common multiple is 20 x 52 ÷ 4 = 260.
The least common multiple of two numbers is their product divided by their greatest common factor. Since 7 is a prime number and 27 is not a multiple of 7, their greatest common factor is 1. The least common multiple is 7 x 27 ÷ 1 = 189.
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 2 and 211 is 1. (See related question "What is the greatest common factor of 2 and 211?" in the link below for more information on this calculation.) So, the least common multiple is 2 x 211 ÷ 1 = 422.
The greatest common factor is 2 and the least common multiple is also 2.