Given numbers are 420,640,958,803

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

The LCM of 420,640,958,803 is 5169521280.

Find LCM of 420,640,958,803 with Prime Factorization

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

2 x 2 x 5 x 21 x 32 x 479 x 803 = 5169521280

Therefore, the lowest common multiple of 420,640,958,803 is 5169521280.

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 640 x 958 x 803 = 206780851200

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

640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

958 : 1, 2, 479, 958

803 : 1, 11, 73, 803

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,640,958,803, is 1.

Now, the common factors can be found like this.

420:2x 2x 3x 5x 7

640:2x 2x 2x 2x 2x 2x 2x 5

958:2x 479

803:11x 73

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 5 = 40

Therefore, the value for common factors is 40.

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 = 206780851200/(1x40)

LCM = 206780851200/40

LCM = 5169521280

Thus, we can understand that the LCM of 420,640,958,803 is 5169521280.

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

• LCM of 967, 524, 799, 638
• LCM of 383, 748, 217, 842
• LCM of 176, 758, 868, 651
• LCM of 321, 566, 740, 893
• LCM of 499, 643, 626, 328

1. What is the LCM of 420, 640, 958, 803?

Answer: LCM of 420, 640, 958, 803 is 5169521280.

2. How to calculate the LCM of 420, 640, 958, 803?

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, 640, 958, 803.

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}.