Given numbers are 420,666,254,397,722

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

The LCM of 420,666,254,397,722 is 848542694580.

Find LCM of 420,666,254,397,722 with Prime Factorization

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

2 x 3 x 70 x 111 x 127 x 397 x 361 = 848542694580

Therefore, the lowest common multiple of 420,666,254,397,722 is 848542694580.

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.

420 x 666 x 254 x 397 x 722 = 20365024669920

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.

420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

666 : 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

254 : 1, 2, 127, 254

397 : 1, 397

722 : 1, 2, 19, 38, 361, 722

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,666,254,397,722, is 1.

Now, the common factors can be found like this.

420:2x 2x 3x 5x 7

666:2x 3x 3x 37

254:2x 127

397:397

722:2x 19x 19

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 3 = 24

Therefore, the value for common factors is 24.

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 = 20365024669920/(1x24)

LCM = 20365024669920/24

LCM = 848542694580

Thus, we can understand that the LCM of 420,666,254,397,722 is 848542694580.

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

• LCM of 320, 162, 683, 885, 838
• LCM of 989, 657, 739, 931, 775
• LCM of 681, 579, 355, 605, 942
• LCM of 441, 481, 186, 824, 871
• LCM of 296, 843, 668, 360, 553

1. What is the LCM of 420, 666, 254, 397, 722?

Answer: LCM of 420, 666, 254, 397, 722 is 848542694580.

2. How to calculate the LCM of 420, 666, 254, 397, 722?

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 420, 666, 254, 397, 722.

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}.