LCM of 781, 781, 142, 894
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 781, 142, 894 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 781, 781, 142, 894. So, keep reading to learn more.
Given numbers are 781,781,142,894
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,781,142,894 is 698214.
Find LCM of 781,781,142,894 with Prime Factorization
| 2 | 781, 781, 142, 894 |
| 11 | 781, 781, 71, 447 |
| 71 | 71, 71, 71, 447 |
| 1, 1, 1, 447 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 71 x 1 x 1 x 1 x 447 = 698214
Therefore, the lowest common multiple of 781,781,142,894 is 698214.
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.
781 x 781 x 142 x 894 = 77433329028
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.
781 : 1, 11, 71, 781
781 : 1, 11, 71, 781
142 : 1, 2, 71, 142
894 : 1, 2, 3, 6, 149, 298, 447, 894
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,781,142,894, is 1.
Now, the common factors can be found like this.
781:11x 71
781:11x 71
142:2x 71
894:2x 3x 149
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 71x 71 = 110902
Therefore, the value for common factors is 110902.
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 = 77433329028/(1x110902)
LCM = 77433329028/110902
LCM = 698214
Thus, we can understand that the LCM of 781,781,142,894 is 698214.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 781, 142, 894
1. What is the LCM of 781, 781, 142, 894?
Answer: LCM of 781, 781, 142, 894 is 698214.
2. How to calculate the LCM of 781, 781, 142, 894?
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 781, 781, 142, 894.
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}.