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  • The Least Common Multiple (LCM) for 42 70 84 is 420.
  • The Greatest Common Factor (GCF) for 42 70 84 is 14.
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Q: What is the least common multiple and the greatest common factor of 42 70 and 84?
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What is the least common multiple of 15 and 25?

The LCM of 15 and 25 is 75. 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 25 is 5. (See related question "What is the greatest common factor of 15 and 25?" for this calculation.) So, the least common multiple is 15 x 25 ÷ 5 = 75. The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.


What are some common multiples of 24 and 36?

The first step is to find the least common multiple of 24 and 36. The least common multiple of two numbers is to multiply them together and divide by their greatest common factor. The greatest common factor of 24 and 36 is 12, so the least common multiple is 24 x 36 ÷ 12 = 72.Next, to find common multiples 24 and 36, list the multiples of the least common multiple.72 x 1 = 7272 x 2 = 14472 x 3 = 21672 x 4 = 28872 x 5 = 360


Compare and Contrast Greatest common factor and Least common multiple?

The greatest common factor, or GCF, is the largest positive integer that will divide evenly with no remainder into all the members of a given set of numbers. The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder. Factors go into numbers, numbers go into multiples.


What is the least common multiple of 19 7 and 4?

The least common multiple is the least factor that can be common in every number. In algebra , L.C.M of 19, 7 and 4 is 19 *7* 4 =532. 532 is the least common multiple of 19 7 and 4.


What are the common factors of 207?

There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.

Related questions

What is the greatest common factor and the least common multiple of 18 and 20?

The greatest common factor is 2 and the least common multiple is also 2.


What is the greatest common factor and least common multiple of 63 and 77?

Greatest common factor (GCF) =7 Least common multiple (LCM) =693


What are the greatest common factor and least common multiple of 20 and 120?

The greatest common factor of 20 and 120 is 20, and the least common multiple of 20 and 120 is 120


What is the greatest common factor and least common multiple of 32 and 49?

The Greatest Common Factor (GCF) of (32,49) is 1The Least Common Multiple (LCM) of (32,49) is 1568


What is the greatest common factor and least common multiple of 4 and 32?

The greatest common factor(gcf) of 4 and 32 is 4. The least common multiple of 4 and 32 is 32.


What is the greatest common multiple of 39 and 35?

The greatest common multiple is infinitely large, the least common multiple is 1365, the greatest common factor is 1.


What is the least common multiple of 64 and 56?

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.


What is the greatest common factor and least common multiple of 15?

Itself


What is the least common multiple of 44 and 60?

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.


How do you know whether to use the greatest common factor or the least common multiple to solve a problem?

the least common multiple is what the numbers you are using divide into. e.g. 3 and 6 have 12 as the common factor. the greatest common factor is what divides into your numbers. 6 and 9 have 3 as the greatest common factor


What is the greatest common multiple of 15 and 45 and the least common multiple of 15 and 45?

The Greatest Common Factor of 15, 45: 15The Least Common Multiple of 15, 45: 45


What is the least common multiple of 29 and 7 using the greatest common factor?

The Least Common Multiple of 29, 7 is 203.