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Q: What is the LCM of each what pairs of numbers 2 and 3 and 5 and 7 and 11 and 19?

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1 and 11

4 and 9 11 and 12

Any pair of prime numbers. 5 and 7 11 and 13

The LCM of two numbers is the product of the numbers if one of the numbers is a prime. Since 11 is a prime, the LCM of 10 and 11 is 110 (10 x 11). If neither number had been a prime, the LCM would have been the product of all the prime factors of the numbers to their greatest power.

1 and 11

33 and 77 have a GCF of 11 and an LCM of 231.

You need at least two numbers to find an LCM.

The LCM is: 110

11

The LCM of the given three numbers is 1386

The LCM of the given three numbers is 198

The LCM of the given three numbers is 792

The LCM of any two consecutive numbers greater than zero is the two numbers multiplied together. eg. the LCM of 10 and 11 is: 10*11=110

You need at least two numbers to find an LCM. If that's 11 and 12, the LCM is 132.

Since both 11 and 7 are prime numbers the LCM is 77

Pair 1: (3 and 5) LCM = 15 Pair 2: (3 and 7) LCM = 21 Pair 3: (13 and 19) LCM = 247

11 and 22

Their LCM is 264

7 and 11, 9 and 10

You need at least two numbers to find an LCM. If that's 3, 10 and 11, the LCM is 330.

You need at least two numbers to find an LCM. If that's 11, 22 and 33, the LCM is 66.

The above is completely true. However, factoring problems in textbooks are usually arranged to have one correct answer. The thing these sorts of problems want you to remember is that the product of the GCF and the LCM of a pair of numbers is the same as the product of the numbers. If you are given the GCF and LCM of a pair of numbers, multiply them together. The numbers will be another factor pair of that product.

The LCM of these numbers is 198. (LCD is just the LCM of the denominators of fractions.)

Since the two numbers have no factors in common, the LCM is -4x11=-44

The LCM of the given five numbers is 4004

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