Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7142 and 7149 the smallest integer that is 51058158 that is divisible by both numbers.
Least Common Multiple (LCM) of 7142 and 7149 is 51058158.
LCM(7142,7149) = 51058158
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 7142 and 7149. First we will calculate the prime factors of 7142 and 7149.
Prime Factorization of 7142
2 | 7142 |
3571 | 3571 |
1 |
Prime factors of 7142 are 2,3571. Prime factorization of 7142 in exponential form is:
7142 = 21×35711
Prime Factorization of 7149
3 | 7149 |
2383 | 2383 |
1 |
Prime factors of 7149 are 3,2383. Prime factorization of 7149 in exponential form is:
7149 = 31×23831
Now multiplying the highest exponent prime factors to calculate the LCM of 7142 and 7149.
LCM(7142,7149) = 21×31×23831×35711
LCM(7142,7149) = 51058158
Factors of 7142
List of positive integer factors of 7142 that divides 7142 without a remainder.
1, 2, 3571, 7142
Factors of 7149
List of positive integer factors of 7149 that divides 7149 without a remainder.
1, 3, 2383, 7149
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7142 and 7149, than apply into the LCM equation.
GCF(7142,7149) = 1
LCM(7142,7149) = ( 7142 × 7149) / 1
LCM(7142,7149) = 51058158 / 1
LCM(7142,7149) = 51058158
(i) The LCM of 7149 and 7142 is associative
LCM of 7142 and 7149 = LCM of 7149 and 7142
1. What is the LCM of 7142 and 7149?
Answer: LCM of 7142 and 7149 is 51058158.
2. What are the Factors of 7142?
Answer: Factors of 7142 are 1, 2, 3571, 7142. There are 4 integers that are factors of 7142. The greatest factor of 7142 is 7142.
3. What are the Factors of 7149?
Answer: Factors of 7149 are 1, 3, 2383, 7149. There are 4 integers that are factors of 7149. The greatest factor of 7149 is 7149.
4. How to Find the LCM of 7142 and 7149?
Answer:
Least Common Multiple of 7142 and 7149 = 51058158
Step 1: Find the prime factorization of 7142
7142 = 2 x 3571
Step 2: Find the prime factorization of 7149
7149 = 3 x 2383
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 51058158 = 2 x 3 x 2383 x 3571
Step 4: Therefore, the least common multiple of 7142 and 7149 is 51058158.