Given numbers are 642,781,669,716

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

The LCM of 642,781,669,716 is 40028927268.

Find LCM of 642,781,669,716 with Prime Factorization

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

2 x 3 x 107 x 781 x 223 x 358 = 40028927268

Therefore, the lowest common multiple of 642,781,669,716 is 40028927268.

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.

642 x 781 x 669 x 716 = 240173563608

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.

642 : 1, 2, 3, 6, 107, 214, 321, 642

781 : 1, 11, 71, 781

669 : 1, 3, 223, 669

716 : 1, 2, 4, 179, 358, 716

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,781,669,716, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

781:11x 71

669:3x 223

716:2x 2x 179

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

2x 3 = 6

Therefore, the value for common factors is 6.

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 = 240173563608/(1x6)

LCM = 240173563608/6

LCM = 40028927268

Thus, we can understand that the LCM of 642,781,669,716 is 40028927268.

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

• LCM of 951, 158, 730, 757
• LCM of 805, 983, 672, 295
• LCM of 469, 151, 203, 839
• LCM of 207, 746, 824, 598
• LCM of 378, 526, 459, 408

1. What is the LCM of 642, 781, 669, 716?

Answer: LCM of 642, 781, 669, 716 is 40028927268.

2. How to calculate the LCM of 642, 781, 669, 716?

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 642, 781, 669, 716.

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}.