Find the LCM of 7, 221, 651, 663 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 7, 221, 651, 663. So, keep reading to learn more.
Given numbers are 7,221,651,663
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 7,221,651,663 is 143871.
Find LCM of 7,221,651,663 with Prime Factorization
3 | 7, 221, 651, 663 |
7 | 7, 221, 217, 221 |
13 | 1, 221, 31, 221 |
17 | 1, 17, 31, 17 |
1, 1, 31, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 13 x 17 x 1 x 1 x 31 x 1 = 143871
Therefore, the lowest common multiple of 7,221,651,663 is 143871.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
7 x 221 x 651 x 663 = 667705311
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
7 : 1, 7
221 : 1, 13, 17, 221
651 : 1, 3, 7, 21, 31, 93, 217, 651
663 : 1, 3, 13, 17, 39, 51, 221, 663
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 7,221,651,663, is 1.
Now, the common factors can be found like this.
7:7
221:13x 17
651:3x 7x 31
663:3x 13x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 13x 17 = 4641
Therefore, the value for common factors is 4641.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 667705311/(1x4641)
LCM = 667705311/4641
LCM = 143871
Thus, we can understand that the LCM of 7,221,651,663 is 143871.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 7, 221, 651, 663?
Answer: LCM of 7, 221, 651, 663 is 143871.
2. How to calculate the LCM of 7, 221, 651, 663?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 7, 221, 651, 663.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.