Given numbers are 691,319,320,638

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

The LCM of 691,319,320,638 is 70537280.

Find LCM of 691,319,320,638 with Prime Factorization

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

2 x 11 x 29 x 691 x 1 x 160 x 1 = 70537280

Therefore, the lowest common multiple of 691,319,320,638 is 70537280.

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.

691 x 319 x 320 x 638 = 45002784640

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.

691 : 1, 691

319 : 1, 11, 29, 319

320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320

638 : 1, 2, 11, 22, 29, 58, 319, 638

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 691,319,320,638, is 1.

Now, the common factors can be found like this.

691:691

319:11x 29

320:2x 2x 2x 2x 2x 2x 5

638:2x 11x 29

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

2x 11x 29 = 638

Therefore, the value for common factors is 638.

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 = 45002784640/(1x638)

LCM = 45002784640/638

LCM = 70537280

Thus, we can understand that the LCM of 691,319,320,638 is 70537280.

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

• LCM of 618, 380, 849, 314
• LCM of 514, 174, 931, 947
• LCM of 514, 127, 267, 629
• LCM of 680, 436, 290, 844
• LCM of 684, 980, 497, 893

1. What is the LCM of 691, 319, 320, 638?

Answer: LCM of 691, 319, 320, 638 is 70537280.

2. How to calculate the LCM of 691, 319, 320, 638?

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 691, 319, 320, 638.

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}.