Given numbers are 521,131,837,21

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

The LCM of 521,131,837,21 is 399882609.

Find LCM of 521,131,837,21 with Prime Factorization

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

3 x 521 x 131 x 279 x 7 = 399882609

Therefore, the lowest common multiple of 521,131,837,21 is 399882609.

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.

521 x 131 x 837 x 21 = 1199647827

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.

521 : 1, 521

131 : 1, 131

837 : 1, 3, 9, 27, 31, 93, 279, 837

21 : 1, 3, 7, 21

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 521,131,837,21, is 1.

Now, the common factors can be found like this.

521:521

131:131

837:3x 3x 3x 31

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.

3 = 3

Therefore, the value for common factors is 3.

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 = 1199647827/(1x3)

LCM = 1199647827/3

LCM = 399882609

Thus, we can understand that the LCM of 521,131,837,21 is 399882609.

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

• LCM of 822, 293, 338, 87
• LCM of 939, 228, 111, 54
• LCM of 691, 263, 182, 97
• LCM of 233, 812, 208, 40
• LCM of 998, 570, 754, 32

1. What is the LCM of 521, 131, 837, 21?

Answer: LCM of 521, 131, 837, 21 is 399882609.

2. How to calculate the LCM of 521, 131, 837, 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 521, 131, 837, 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}.