Given numbers are 778,443,420

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

The LCM of 778,443,420 is 72377340.

Find LCM of 778,443,420 with Prime Factorization

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

2 x 389 x 443 x 210 = 72377340

Therefore, the lowest common multiple of 778,443,420 is 72377340.

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.

778 x 443 x 420 = 144754680

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.

778 : 1, 2, 389, 778

443 : 1, 443

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 778,443,420, is 1.

Now, the common factors can be found like this.

778:2x 389

443:443

420:2x 2x 3x 5x 7

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

2 = 2

Therefore, the value for common factors is 2.

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 = 144754680/(1x2)

LCM = 144754680/2

LCM = 72377340

Thus, we can understand that the LCM of 778,443,420 is 72377340.

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

• LCM of 270, 118, 393
• LCM of 487, 976, 407
• LCM of 308, 692, 839
• LCM of 176, 989, 715
• LCM of 107, 146, 421

1. What is the LCM of 778, 443, 420?

Answer: LCM of 778, 443, 420 is 72377340.

2. How to calculate the LCM of 778, 443, 420?

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 778, 443, 420.

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}.