Given numbers are 642,118,289,397

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

The LCM of 642,118,289,397 is 4345856574.

Find LCM of 642,118,289,397 with Prime Factorization

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

2 x 321 x 59 x 289 x 397 = 4345856574

Therefore, the lowest common multiple of 642,118,289,397 is 4345856574.

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 118 x 289 x 397 = 8691713148

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

118 : 1, 2, 59, 118

289 : 1, 17, 289

397 : 1, 397

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,118,289,397, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

118:2x 59

289:17x 17

397:397

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

2 = 2

Therefore, the value for common factors is 2.

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 = 8691713148/(1x2)

LCM = 8691713148/2

LCM = 4345856574

Thus, we can understand that the LCM of 642,118,289,397 is 4345856574.

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

• LCM of 879, 824, 863, 824
• LCM of 116, 395, 955, 613
• LCM of 142, 159, 107, 662
• LCM of 763, 130, 939, 839
• LCM of 462, 235, 646, 881

1. What is the LCM of 642, 118, 289, 397?

Answer: LCM of 642, 118, 289, 397 is 4345856574.

2. How to calculate the LCM of 642, 118, 289, 397?

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, 118, 289, 397.

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}.