Given numbers are 646,672,921,126

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

The LCM of 646,672,921,126 is 199908576.

Find LCM of 646,672,921,126 with Prime Factorization

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

2 x 3 x 7 x 323 x 16 x 307 x 3 = 199908576

Therefore, the lowest common multiple of 646,672,921,126 is 199908576.

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.

646 x 672 x 921 x 126 = 50376961152

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.

646 : 1, 2, 17, 19, 34, 38, 323, 646

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

921 : 1, 3, 307, 921

126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,672,921,126, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

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

921:3x 307

126:2x 3x 3x 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 3x 7 = 252

Therefore, the value for common factors is 252.

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 = 50376961152/(1x252)

LCM = 50376961152/252

LCM = 199908576

Thus, we can understand that the LCM of 646,672,921,126 is 199908576.

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

• LCM of 733, 846, 308, 963
• LCM of 265, 108, 682, 470
• LCM of 700, 724, 159, 633
• LCM of 623, 543, 701, 839
• LCM of 220, 172, 340, 727

1. What is the LCM of 646, 672, 921, 126?

Answer: LCM of 646, 672, 921, 126 is 199908576.

2. How to calculate the LCM of 646, 672, 921, 126?

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 646, 672, 921, 126.

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}.