Given numbers are 991,781,781,691

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 991,781,781,691 is 534813961.

Find LCM of 991,781,781,691 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

11 x 71 x 991 x 1 x 1 x 691 = 534813961

Therefore, the lowest common multiple of 991,781,781,691 is 534813961.

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.

991 x 781 x 781 x 691 = 417689703541

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.

991 : 1, 991

781 : 1, 11, 71, 781

781 : 1, 11, 71, 781

691 : 1, 691

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 991,781,781,691, is 1.

Now, the common factors can be found like this.

991:991

781:11x 71

781:11x 71

691:691

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

11x 71 = 781

Therefore, the value for common factors is 781.

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 = 417689703541/(1x781)

LCM = 417689703541/781

LCM = 534813961

Thus, we can understand that the LCM of 991,781,781,691 is 534813961.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 639, 587, 951, 926
• LCM of 345, 418, 842, 259
• LCM of 136, 359, 553, 495
• LCM of 696, 819, 449, 956
• LCM of 118, 216, 343, 125

1. What is the LCM of 991, 781, 781, 691?

Answer: LCM of 991, 781, 781, 691 is 534813961.

2. How to calculate the LCM of 991, 781, 781, 691?

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 991, 781, 781, 691.

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}.