Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 129 and 130 the smallest integer that is 16770 that is divisible by both numbers.
Least Common Multiple (LCM) of 129 and 130 is 16770.
LCM(129,130) = 16770
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 129 and 130. First we will calculate the prime factors of 129 and 130.
Prime Factorization of 129
3 | 129 |
43 | 43 |
1 |
Prime factors of 129 are 3,43. Prime factorization of 129 in exponential form is:
129 = 31×431
Prime Factorization of 130
2 | 130 |
5 | 65 |
13 | 13 |
1 |
Prime factors of 130 are 2, 5,13. Prime factorization of 130 in exponential form is:
130 = 21×51×131
Now multiplying the highest exponent prime factors to calculate the LCM of 129 and 130.
LCM(129,130) = 21×31×51×131×431
LCM(129,130) = 16770
Factors of 129
List of positive integer factors of 129 that divides 129 without a remainder.
1, 3, 43, 129
Factors of 130
List of positive integer factors of 130 that divides 130 without a remainder.
1, 2, 5, 10, 13, 26, 65, 130
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 129 and 130, than apply into the LCM equation.
GCF(129,130) = 1
LCM(129,130) = ( 129 × 130) / 1
LCM(129,130) = 16770 / 1
LCM(129,130) = 16770
(i) The LCM of 130 and 129 is associative
LCM of 129 and 130 = LCM of 130 and 129
1. What is the LCM of 129 and 130?
Answer: LCM of 129 and 130 is 16770.
2. What are the Factors of 129?
Answer: Factors of 129 are 1, 3, 43, 129. There are 4 integers that are factors of 129. The greatest factor of 129 is 129.
3. What are the Factors of 130?
Answer: Factors of 130 are 1, 2, 5, 10, 13, 26, 65, 130. There are 8 integers that are factors of 130. The greatest factor of 130 is 130.
4. How to Find the LCM of 129 and 130?
Answer:
Least Common Multiple of 129 and 130 = 16770
Step 1: Find the prime factorization of 129
129 = 3 x 43
Step 2: Find the prime factorization of 130
130 = 2 x 5 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 16770 = 2 x 3 x 5 x 13 x 43
Step 4: Therefore, the least common multiple of 129 and 130 is 16770.