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 7146 the smallest integer that is 25518366 that is divisible by both numbers.
Least Common Multiple (LCM) of 7142 and 7146 is 25518366.
LCM(7142,7146) = 25518366
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 7146. First we will calculate the prime factors of 7142 and 7146.
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 7146
2 | 7146 |
3 | 3573 |
3 | 1191 |
397 | 397 |
1 |
Prime factors of 7146 are 2, 3,397. Prime factorization of 7146 in exponential form is:
7146 = 21×32×3971
Now multiplying the highest exponent prime factors to calculate the LCM of 7142 and 7146.
LCM(7142,7146) = 21×32×3971×35711
LCM(7142,7146) = 25518366
Factors of 7142
List of positive integer factors of 7142 that divides 7142 without a remainder.
1, 2, 3571, 7142
Factors of 7146
List of positive integer factors of 7146 that divides 7146 without a remainder.
1, 2, 3, 6, 9, 18, 397, 794, 1191, 2382, 3573, 7146
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7142 and 7146, than apply into the LCM equation.
GCF(7142,7146) = 2
LCM(7142,7146) = ( 7142 × 7146) / 2
LCM(7142,7146) = 51036732 / 2
LCM(7142,7146) = 25518366
(i) The LCM of 7146 and 7142 is associative
LCM of 7142 and 7146 = LCM of 7146 and 7142
1. What is the LCM of 7142 and 7146?
Answer: LCM of 7142 and 7146 is 25518366.
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 7146?
Answer: Factors of 7146 are 1, 2, 3, 6, 9, 18, 397, 794, 1191, 2382, 3573, 7146. There are 12 integers that are factors of 7146. The greatest factor of 7146 is 7146.
4. How to Find the LCM of 7142 and 7146?
Answer:
Least Common Multiple of 7142 and 7146 = 25518366
Step 1: Find the prime factorization of 7142
7142 = 2 x 3571
Step 2: Find the prime factorization of 7146
7146 = 2 x 3 x 3 x 397
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 25518366 = 2 x 3 x 3 x 397 x 3571
Step 4: Therefore, the least common multiple of 7142 and 7146 is 25518366.