Given numbers are 681,106,497,21

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

The LCM of 681,106,497,21 is 35876442.

Find LCM of 681,106,497,21 with Prime Factorization

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

3 x 7 x 227 x 106 x 71 x 1 = 35876442

Therefore, the lowest common multiple of 681,106,497,21 is 35876442.

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.

681 x 106 x 497 x 21 = 753405282

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.

681 : 1, 3, 227, 681

106 : 1, 2, 53, 106

497 : 1, 7, 71, 497

21 : 1, 3, 7, 21

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 681,106,497,21, is 1.

Now, the common factors can be found like this.

681:3x 227

106:2x 53

497:7x 71

21:3x 7

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

3x 7 = 21

Therefore, the value for common factors is 21.

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 = 753405282/(1x21)

LCM = 753405282/21

LCM = 35876442

Thus, we can understand that the LCM of 681,106,497,21 is 35876442.

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

• LCM of 440, 345, 251, 83
• LCM of 122, 216, 789, 52
• LCM of 438, 961, 618, 56
• LCM of 568, 842, 788, 48
• LCM of 394, 331, 786, 65

1. What is the LCM of 681, 106, 497, 21?

Answer: LCM of 681, 106, 497, 21 is 35876442.

2. How to calculate the LCM of 681, 106, 497, 21?

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 681, 106, 497, 21.

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}.