Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4120 and 4128 the smallest integer that is 2125920 that is divisible by both numbers.
Least Common Multiple (LCM) of 4120 and 4128 is 2125920.
LCM(4120,4128) = 2125920
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 4120 and 4128. First we will calculate the prime factors of 4120 and 4128.
Prime Factorization of 4120
2 | 4120 |
2 | 2060 |
2 | 1030 |
5 | 515 |
103 | 103 |
1 |
Prime factors of 4120 are 2, 5,103. Prime factorization of 4120 in exponential form is:
4120 = 23×51×1031
Prime Factorization of 4128
2 | 4128 |
2 | 2064 |
2 | 1032 |
2 | 516 |
2 | 258 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 4128 are 2, 3,43. Prime factorization of 4128 in exponential form is:
4128 = 25×31×431
Now multiplying the highest exponent prime factors to calculate the LCM of 4120 and 4128.
LCM(4120,4128) = 25×31×51×431×1031
LCM(4120,4128) = 2125920
Factors of 4120
List of positive integer factors of 4120 that divides 4120 without a remainder.
1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120
Factors of 4128
List of positive integer factors of 4128 that divides 4128 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 86, 96, 129, 172, 258, 344, 516, 688, 1032, 1376, 2064, 4128
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4120 and 4128, than apply into the LCM equation.
GCF(4120,4128) = 8
LCM(4120,4128) = ( 4120 × 4128) / 8
LCM(4120,4128) = 17007360 / 8
LCM(4120,4128) = 2125920
(i) The LCM of 4128 and 4120 is associative
LCM of 4120 and 4128 = LCM of 4128 and 4120
1. What is the LCM of 4120 and 4128?
Answer: LCM of 4120 and 4128 is 2125920.
2. What are the Factors of 4120?
Answer: Factors of 4120 are 1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120. There are 16 integers that are factors of 4120. The greatest factor of 4120 is 4120.
3. What are the Factors of 4128?
Answer: Factors of 4128 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 86, 96, 129, 172, 258, 344, 516, 688, 1032, 1376, 2064, 4128. There are 24 integers that are factors of 4128. The greatest factor of 4128 is 4128.
4. How to Find the LCM of 4120 and 4128?
Answer:
Least Common Multiple of 4120 and 4128 = 2125920
Step 1: Find the prime factorization of 4120
4120 = 2 x 2 x 2 x 5 x 103
Step 2: Find the prime factorization of 4128
4128 = 2 x 2 x 2 x 2 x 2 x 3 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2125920 = 2 x 2 x 2 x 2 x 2 x 3 x 5 x 43 x 103
Step 4: Therefore, the least common multiple of 4120 and 4128 is 2125920.