LCM of 722, 156, 221, 992
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 722, 156, 221, 992 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 722, 156, 221, 992. So, keep reading to learn more.
Given numbers are 722,156,221,992
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 722,156,221,992 is 237428256.
Find LCM of 722,156,221,992 with Prime Factorization
| 2 | 722, 156, 221, 992 |
| 2 | 361, 78, 221, 496 |
| 13 | 361, 39, 221, 248 |
| 361, 3, 17, 248 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 13 x 361 x 3 x 17 x 248 = 237428256
Therefore, the lowest common multiple of 722,156,221,992 is 237428256.
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.
722 x 156 x 221 x 992 = 24692538624
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.
722 : 1, 2, 19, 38, 361, 722
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
221 : 1, 13, 17, 221
992 : 1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 722,156,221,992, is 1.
Now, the common factors can be found like this.
722:2x 19x 19
156:2x 2x 3x 13
221:13x 17
992:2x 2x 2x 2x 2x 31
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 13 = 104
Therefore, the value for common factors is 104.
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 = 24692538624/(1x104)
LCM = 24692538624/104
LCM = 237428256
Thus, we can understand that the LCM of 722,156,221,992 is 237428256.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 722, 156, 221, 992
1. What is the LCM of 722, 156, 221, 992?
Answer: LCM of 722, 156, 221, 992 is 237428256.
2. How to calculate the LCM of 722, 156, 221, 992?
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 722, 156, 221, 992.
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}.