Given numbers are 646,119,257,398

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

The LCM of 646,119,257,398 is 231268646.

Find LCM of 646,119,257,398 with Prime Factorization

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

2 x 17 x 19 x 7 x 257 x 199 = 231268646

Therefore, the lowest common multiple of 646,119,257,398 is 231268646.

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.

646 x 119 x 257 x 398 = 7863133964

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.

646 : 1, 2, 17, 19, 34, 38, 323, 646

119 : 1, 7, 17, 119

257 : 1, 257

398 : 1, 2, 199, 398

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,119,257,398, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

119:7x 17

257:257

398:2x 199

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

2x 17 = 34

Therefore, the value for common factors is 34.

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 = 7863133964/(1x34)

LCM = 7863133964/34

LCM = 231268646

Thus, we can understand that the LCM of 646,119,257,398 is 231268646.

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

• LCM of 278, 911, 273, 894
• LCM of 397, 995, 390, 871
• LCM of 846, 545, 905, 820
• LCM of 146, 231, 102, 842
• LCM of 744, 203, 985, 367

1. What is the LCM of 646, 119, 257, 398?

Answer: LCM of 646, 119, 257, 398 is 231268646.

2. How to calculate the LCM of 646, 119, 257, 398?

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 646, 119, 257, 398.

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}.