Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7130 and 7138 the smallest integer that is 25446970 that is divisible by both numbers.
Least Common Multiple (LCM) of 7130 and 7138 is 25446970.
LCM(7130,7138) = 25446970
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 7130 and 7138. First we will calculate the prime factors of 7130 and 7138.
Prime Factorization of 7130
2 | 7130 |
5 | 3565 |
23 | 713 |
31 | 31 |
1 |
Prime factors of 7130 are 2, 5, 23,31. Prime factorization of 7130 in exponential form is:
7130 = 21×51×231×311
Prime Factorization of 7138
2 | 7138 |
43 | 3569 |
83 | 83 |
1 |
Prime factors of 7138 are 2, 43,83. Prime factorization of 7138 in exponential form is:
7138 = 21×431×831
Now multiplying the highest exponent prime factors to calculate the LCM of 7130 and 7138.
LCM(7130,7138) = 21×51×231×311×431×831
LCM(7130,7138) = 25446970
Factors of 7130
List of positive integer factors of 7130 that divides 7130 without a remainder.
1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 310, 713, 1426, 3565, 7130
Factors of 7138
List of positive integer factors of 7138 that divides 7138 without a remainder.
1, 2, 43, 83, 86, 166, 3569, 7138
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7130 and 7138, than apply into the LCM equation.
GCF(7130,7138) = 2
LCM(7130,7138) = ( 7130 × 7138) / 2
LCM(7130,7138) = 50893940 / 2
LCM(7130,7138) = 25446970
(i) The LCM of 7138 and 7130 is associative
LCM of 7130 and 7138 = LCM of 7138 and 7130
1. What is the LCM of 7130 and 7138?
Answer: LCM of 7130 and 7138 is 25446970.
2. What are the Factors of 7130?
Answer: Factors of 7130 are 1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 310, 713, 1426, 3565, 7130. There are 16 integers that are factors of 7130. The greatest factor of 7130 is 7130.
3. What are the Factors of 7138?
Answer: Factors of 7138 are 1, 2, 43, 83, 86, 166, 3569, 7138. There are 8 integers that are factors of 7138. The greatest factor of 7138 is 7138.
4. How to Find the LCM of 7130 and 7138?
Answer:
Least Common Multiple of 7130 and 7138 = 25446970
Step 1: Find the prime factorization of 7130
7130 = 2 x 5 x 23 x 31
Step 2: Find the prime factorization of 7138
7138 = 2 x 43 x 83
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 25446970 = 2 x 5 x 23 x 31 x 43 x 83
Step 4: Therefore, the least common multiple of 7130 and 7138 is 25446970.