Least Common Multiple of 1218 and 1224

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Free LCM Calculator determines the least common multiple (LCM) between 1218 and 1224 the smallest integer that is 248472 that is divisible by both numbers.

Least Common Multiple (LCM) of 1218 and 1224 is 248472.

LCM(1218,1224) = 248472

LCM of 1218 and 1224

Least common multiple or lowest common denominator (LCD) can be calculated in three ways;

LCM of:
and

Least Common Multiple of 1218 and 1224

LCM of 1218 and 1224 is 248472

Least common multiple can be found by multiplying the highest exponent prime factors of 1218 and 1224. First we will calculate the prime factors of 1218 and 1224.

Prime Factorization of 1218


2 1218
3 609
7 203
29 29
1

Prime factors of 1218 are 2, 3, 7,29. Prime factorization of 1218 in exponential form is:

1218 = 21×31×71×291

Prime Factorization of 1224


2 1224
2 612
2 306
3 153
3 51
17 17
1

Prime factors of 1224 are 2, 3,17. Prime factorization of 1224 in exponential form is:

1224 = 23×32×171

Now multiplying the highest exponent prime factors to calculate the LCM of 1218 and 1224.

LCM(1218,1224) = 23×32×71×171×291
LCM(1218,1224) = 248472

Factors of 1218

List of positive integer factors of 1218 that divides 1218 without a remainder.

1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218

Factors of 1224

List of positive integer factors of 1224 that divides 1224 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224

Least Common Multiple of 1218 and 1224 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1218 and 1224, than apply into the LCM equation.

GCF(1218,1224) = 6
LCM(1218,1224) = ( 1218 × 1224) / 6
LCM(1218,1224) = 1490832 / 6
LCM(1218,1224) = 248472

Properties of LCM 1218 and 1224

(i) The LCM of 1224 and 1218 is associative

LCM of 1218 and 1224 = LCM of 1224 and 1218

Related Least Common Multiples of 1218

Related Least Common Multiples of 1224

Frequently Asked Questions on LCM of 1218 and 1224

1. What is the LCM of 1218 and 1224?

Answer: LCM of 1218 and 1224 is 248472.

2. What are the Factors of 1218?

Answer: Factors of 1218 are 1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218. There are 16 integers that are factors of 1218. The greatest factor of 1218 is 1218.

3. What are the Factors of 1224?

Answer: Factors of 1224 are 1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224. There are 24 integers that are factors of 1224. The greatest factor of 1224 is 1224.

4. How to Find the LCM of 1218 and 1224?

Answer:

Least Common Multiple of 1218 and 1224 = 248472

Step 1: Find the prime factorization of 1218

1218 = 2 x 3 x 7 x 29

Step 2: Find the prime factorization of 1224

1224 = 2 x 2 x 2 x 3 x 3 x 17

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 248472 = 2 x 2 x 2 x 3 x 3 x 7 x 17 x 29

Step 4: Therefore, the least common multiple of 1218 and 1224 is 248472.