Given numbers are 672,740,643,668

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

The LCM of 672,740,643,668 is 13349605920.

Find LCM of 672,740,643,668 with Prime Factorization

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

2 x 2 x 168 x 185 x 643 x 167 = 13349605920

Therefore, the lowest common multiple of 672,740,643,668 is 13349605920.

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.

672 x 740 x 643 x 668 = 213593694720

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.

672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672

740 : 1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740

643 : 1, 643

668 : 1, 2, 4, 167, 334, 668

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 672,740,643,668, is 1.

Now, the common factors can be found like this.

672:2x 2x 2x 2x 2x 3x 7

740:2x 2x 5x 37

643:643

668:2x 2x 167

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 2x 2 = 16

Therefore, the value for common factors is 16.

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 = 213593694720/(1x16)

LCM = 213593694720/16

LCM = 13349605920

Thus, we can understand that the LCM of 672,740,643,668 is 13349605920.

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

• LCM of 136, 460, 682, 888
• LCM of 781, 908, 954, 899
• LCM of 925, 249, 276, 268
• LCM of 983, 762, 419, 410
• LCM of 826, 409, 138, 790

1. What is the LCM of 672, 740, 643, 668?

Answer: LCM of 672, 740, 643, 668 is 13349605920.

2. How to calculate the LCM of 672, 740, 643, 668?

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 672, 740, 643, 668.

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}.