Given numbers are 642,421,214,715

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

The LCM of 642,421,214,715 is 193251630.

Find LCM of 642,421,214,715 with Prime Factorization

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

2 x 107 x 3 x 421 x 1 x 715 = 193251630

Therefore, the lowest common multiple of 642,421,214,715 is 193251630.

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 421 x 214 x 715 = 41355848820

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

421 : 1, 421

214 : 1, 2, 107, 214

715 : 1, 5, 11, 13, 55, 65, 143, 715

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,421,214,715, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

421:421

214:2x 107

715:5x 11x 13

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

2x 107 = 214

Therefore, the value for common factors is 214.

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 = 41355848820/(1x214)

LCM = 41355848820/214

LCM = 193251630

Thus, we can understand that the LCM of 642,421,214,715 is 193251630.

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

• LCM of 382, 826, 590, 632
• LCM of 392, 191, 327, 525
• LCM of 582, 345, 985, 112
• LCM of 680, 163, 910, 931
• LCM of 979, 770, 407, 183

1. What is the LCM of 642, 421, 214, 715?

Answer: LCM of 642, 421, 214, 715 is 193251630.

2. How to calculate the LCM of 642, 421, 214, 715?

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, 421, 214, 715.

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}.