Given numbers are 642,101,692,821

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

The LCM of 642,101,692,821 is 18419407572.

Find LCM of 642,101,692,821 with Prime Factorization

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

2 x 321 x 101 x 346 x 821 = 18419407572

Therefore, the lowest common multiple of 642,101,692,821 is 18419407572.

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 101 x 692 x 821 = 36838815144

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

101 : 1, 101

692 : 1, 2, 4, 173, 346, 692

821 : 1, 821

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,101,692,821, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

101:101

692:2x 2x 173

821:821

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 = 36838815144/(1x2)

LCM = 36838815144/2

LCM = 18419407572

Thus, we can understand that the LCM of 642,101,692,821 is 18419407572.

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

• LCM of 108, 591, 765, 906
• LCM of 586, 550, 956, 669
• LCM of 854, 531, 651, 131
• LCM of 312, 688, 670, 632
• LCM of 479, 147, 568, 288

1. What is the LCM of 642, 101, 692, 821?

Answer: LCM of 642, 101, 692, 821 is 18419407572.

2. How to calculate the LCM of 642, 101, 692, 821?

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, 101, 692, 821.

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}.