Given numbers are 669,418,606,420

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

The LCM of 669,418,606,420 is 1977068940.

Find LCM of 669,418,606,420 with Prime Factorization

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

2 x 3 x 223 x 209 x 101 x 70 = 1977068940

Therefore, the lowest common multiple of 669,418,606,420 is 1977068940.

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.

669 x 418 x 606 x 420 = 71174481840

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.

669 : 1, 3, 223, 669

418 : 1, 2, 11, 19, 22, 38, 209, 418

606 : 1, 2, 3, 6, 101, 202, 303, 606

420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 669,418,606,420, is 1.

Now, the common factors can be found like this.

669:3x 223

418:2x 11x 19

606:2x 3x 101

420:2x 2x 3x 5x 7

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

2x 2x 3x 3 = 36

Therefore, the value for common factors is 36.

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 = 71174481840/(1x36)

LCM = 71174481840/36

LCM = 1977068940

Thus, we can understand that the LCM of 669,418,606,420 is 1977068940.

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

• LCM of 836, 141, 622, 306
• LCM of 110, 730, 782, 697
• LCM of 409, 138, 772, 820
• LCM of 454, 348, 820, 583
• LCM of 725, 151, 515, 766

1. What is the LCM of 669, 418, 606, 420?

Answer: LCM of 669, 418, 606, 420 is 1977068940.

2. How to calculate the LCM of 669, 418, 606, 420?

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 669, 418, 606, 420.

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}.