LCM of 672, 361, 836, 644
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 672, 361, 836, 644 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 672, 361, 836, 644. So, keep reading to learn more.
Given numbers are 672,361,836,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 672,361,836,644 is 61375776.
Find LCM of 672,361,836,644 with Prime Factorization
| 2 | 672, 361, 836, 644 |
| 2 | 336, 361, 418, 322 |
| 7 | 168, 361, 209, 161 |
| 19 | 24, 361, 209, 23 |
| 24, 19, 11, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 19 x 24 x 19 x 11 x 23 = 61375776
Therefore, the lowest common multiple of 672,361,836,644 is 61375776.
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.
672 x 361 x 836 x 644 = 130607651328
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.
672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
361 : 1, 19, 361
836 : 1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 672,361,836,644, is 1.
Now, the common factors can be found like this.
672:2x 2x 2x 2x 2x 3x 7
361:19x 19
836:2x 2x 11x 19
644:2x 2x 7x 23
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 2x 7x 19 = 2128
Therefore, the value for common factors is 2128.
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 = 130607651328/(1x2128)
LCM = 130607651328/2128
LCM = 61375776
Thus, we can understand that the LCM of 672,361,836,644 is 61375776.
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FAQs on LCM of 672, 361, 836, 644
1. What is the LCM of 672, 361, 836, 644?
Answer: LCM of 672, 361, 836, 644 is 61375776.
2. How to calculate the LCM of 672, 361, 836, 644?
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 672, 361, 836, 644.
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}.