Given Numbers are 6981, 6987

We can find the LCM of 6981, 6987 using the brute force method, prime factorization method, or GCD method.

To use brute force method, list the multiples of 6981 and 6987

Multiples of 6981 =6981,13962,20943,27924,34905,41886,48867,55848,62829,69810,76791,83772,90753,97734,104715,111696,118677,

Multiples of 6987 =6987,13974,20961,27948,34935,41922,48909,55896,62883,69870,76857,83844,90831,97818,104805,111792,118779,

Now, get the least common multiple of 6981, 6987 which is 16258749

So, the LCM of 6981, 6987 is 16258749.

One method for determining the LCM of 6981 and 6987 is to compare the prime factorization of each number. You can find the prime factorization for each number by following the instructions below:

Here is 6981's prime factorization:

Prime factors of 6981 are 3, 13,179.

6981 = 3¹×13¹×179¹

And this is 6987's prime factorization:

Prime factors of 6987 are 3, 17,137.

6987 = 3¹×17¹×137¹

When comparing the prime factorization of these two numbers, look for the highest power to which each prime factor is raised. In this case, the following primary factors must be considered: 3, 13,179, 17,137

3¹×13¹×17¹×137¹×179¹ = 16258749

This shows that the LCM of 6981 and 6987 is 16258749.

The first step in determining the Least Common Multiple of 6981 and 6987 is to generate a list of multiples for each number.

Lets look at the multiples of these two numbers, 6981 and 6987:

Lets look at the first ten multiples of these numbers, 6981 and 6987:

6981,13962,20943,27924,34905,41886,48867,55848,62829,118677 are the first ten multiples of 6981.

6987,13974,20961,27948,34935,41922,48909,55896,62883,118779 are the first ten multiples of 6987.

You can continue to list the multiples of these numbers until you find a match. Once you have found a match, or several matches, the Least Common Multiple is the smallest of these matches. The first matching multiple(s) of 6981 and 6987, for example, are 83772, 118677, and 111792. 16258749 is the least common multiple since it is the smallest.

6981 and 6987 have an LCM of 16258749.

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6981 and 6987, than apply into the LCM equation.

GCF(6981,6987) = 3
LCM(6981,6987) = ( 6981 × 6987) / 3
LCM(6981,6987) = 48776247 / 3
LCM(6981,6987) = 16258749

1. What is the LCM of 6981 and 6987?

The LCM of 6981 and 6987 is 16258749.

2. How to find the lowest common multiple of 6981 and 6987?

To find the lowest common multiple of 6981 and 6987, we have to get the multip;es of both numbers and identify the least common multiple in them which is 16258749.

3. What are the Factors of 6981?

Answer: Factors of 6981 are 1, 3, 13, 39, 179, 537, 2327, 6981. There are 8 integers that are factors of 6981. The greatest factor of 6981 is 6981.

4. What are the Factors of 6987?

Answer: Factors of 6987 are 1, 3, 17, 51, 137, 411, 2329, 6987. There are 8 integers that are factors of 6987. The greatest factor of 6987 is 6987.

Answer:

Least Common Multiple of 6981 and 6987 = 16258749

Step 1: Find the prime factorization of 6981

6981 = 3 x 13 x 179

Step 2: Find the prime factorization of 6987

6987 = 3 x 17 x 137

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 16258749 = 3 x 13 x 17 x 137 x 179

Step 4: Therefore, the least common multiple of 6981 and 6987 is 16258749.