Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7123 and 7130 the smallest integer that is 50786990 that is divisible by both numbers.
Least Common Multiple (LCM) of 7123 and 7130 is 50786990.
LCM(7123,7130) = 50786990
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 7123 and 7130. First we will calculate the prime factors of 7123 and 7130.
Prime Factorization of 7123
17 | 7123 |
419 | 419 |
1 |
Prime factors of 7123 are 17,419. Prime factorization of 7123 in exponential form is:
7123 = 171×4191
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
Now multiplying the highest exponent prime factors to calculate the LCM of 7123 and 7130.
LCM(7123,7130) = 21×51×171×231×311×4191
LCM(7123,7130) = 50786990
Factors of 7123
List of positive integer factors of 7123 that divides 7123 without a remainder.
1, 17, 419, 7123
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7123 and 7130, than apply into the LCM equation.
GCF(7123,7130) = 1
LCM(7123,7130) = ( 7123 × 7130) / 1
LCM(7123,7130) = 50786990 / 1
LCM(7123,7130) = 50786990
(i) The LCM of 7130 and 7123 is associative
LCM of 7123 and 7130 = LCM of 7130 and 7123
1. What is the LCM of 7123 and 7130?
Answer: LCM of 7123 and 7130 is 50786990.
2. What are the Factors of 7123?
Answer: Factors of 7123 are 1, 17, 419, 7123. There are 4 integers that are factors of 7123. The greatest factor of 7123 is 7123.
3. 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.
4. How to Find the LCM of 7123 and 7130?
Answer:
Least Common Multiple of 7123 and 7130 = 50786990
Step 1: Find the prime factorization of 7123
7123 = 17 x 419
Step 2: Find the prime factorization of 7130
7130 = 2 x 5 x 23 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 50786990 = 2 x 5 x 17 x 23 x 31 x 419
Step 4: Therefore, the least common multiple of 7123 and 7130 is 50786990.