Least Common Multiple of 121 and 126

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Free LCM Calculator determines the least common multiple (LCM) between 121 and 126 the smallest integer that is 15246 that is divisible by both numbers.

Least Common Multiple (LCM) of 121 and 126 is 15246.

LCM(121,126) = 15246

LCM of 121 and 126

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

LCM of:
and

Least Common Multiple of 121 and 126

LCM of 121 and 126 is 15246

Least common multiple can be found by multiplying the highest exponent prime factors of 121 and 126. First we will calculate the prime factors of 121 and 126.

Prime Factorization of 121


11 121
11 11
1

Prime factors of 121 are 11. Prime factorization of 121 in exponential form is:

121 = 112

Prime Factorization of 126


2 126
3 63
3 21
7 7
1

Prime factors of 126 are 2, 3,7. Prime factorization of 126 in exponential form is:

126 = 21×32×71

Now multiplying the highest exponent prime factors to calculate the LCM of 121 and 126.

LCM(121,126) = 21×32×71×112
LCM(121,126) = 15246

Factors of 121

List of positive integer factors of 121 that divides 121 without a remainder.

1, 11, 121

Factors of 126

List of positive integer factors of 126 that divides 126 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

Least Common Multiple of 121 and 126 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 121 and 126, than apply into the LCM equation.

GCF(121,126) = 1
LCM(121,126) = ( 121 × 126) / 1
LCM(121,126) = 15246 / 1
LCM(121,126) = 15246

Properties of LCM 121 and 126

(i) The LCM of 126 and 121 is associative

LCM of 121 and 126 = LCM of 126 and 121

Related Least Common Multiples of 121

Related Least Common Multiples of 126

Frequently Asked Questions on LCM of 121 and 126

1. What is the LCM of 121 and 126?

Answer: LCM of 121 and 126 is 15246.

2. What are the Factors of 121?

Answer: Factors of 121 are 1, 11, 121. There are 3 integers that are factors of 121. The greatest factor of 121 is 121.

3. What are the Factors of 126?

Answer: Factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126. There are 12 integers that are factors of 126. The greatest factor of 126 is 126.

4. How to Find the LCM of 121 and 126?

Answer:

Least Common Multiple of 121 and 126 = 15246

Step 1: Find the prime factorization of 121

121 = 11 x 11

Step 2: Find the prime factorization of 126

126 = 2 x 3 x 3 x 7

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

LCM = 15246 = 2 x 3 x 3 x 7 x 11 x 11

Step 4: Therefore, the least common multiple of 121 and 126 is 15246.