Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 20420 and 20427 the smallest integer that is 417119340 that is divisible by both numbers.
Least Common Multiple (LCM) of 20420 and 20427 is 417119340.
LCM(20420,20427) = 417119340
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 20420 and 20427. First we will calculate the prime factors of 20420 and 20427.
Prime Factorization of 20420
2 | 20420 |
2 | 10210 |
5 | 5105 |
1021 | 1021 |
1 |
Prime factors of 20420 are 2, 5,1021. Prime factorization of 20420 in exponential form is:
20420 = 22×51×10211
Prime Factorization of 20427
3 | 20427 |
11 | 6809 |
619 | 619 |
1 |
Prime factors of 20427 are 3, 11,619. Prime factorization of 20427 in exponential form is:
20427 = 31×111×6191
Now multiplying the highest exponent prime factors to calculate the LCM of 20420 and 20427.
LCM(20420,20427) = 22×31×51×111×6191×10211
LCM(20420,20427) = 417119340
Factors of 20420
List of positive integer factors of 20420 that divides 20420 without a remainder.
1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 10210, 20420
Factors of 20427
List of positive integer factors of 20427 that divides 20427 without a remainder.
1, 3, 11, 33, 619, 1857, 6809, 20427
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20420 and 20427, than apply into the LCM equation.
GCF(20420,20427) = 1
LCM(20420,20427) = ( 20420 × 20427) / 1
LCM(20420,20427) = 417119340 / 1
LCM(20420,20427) = 417119340
(i) The LCM of 20427 and 20420 is associative
LCM of 20420 and 20427 = LCM of 20427 and 20420
1. What is the LCM of 20420 and 20427?
Answer: LCM of 20420 and 20427 is 417119340.
2. What are the Factors of 20420?
Answer: Factors of 20420 are 1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 10210, 20420. There are 12 integers that are factors of 20420. The greatest factor of 20420 is 20420.
3. What are the Factors of 20427?
Answer: Factors of 20427 are 1, 3, 11, 33, 619, 1857, 6809, 20427. There are 8 integers that are factors of 20427. The greatest factor of 20427 is 20427.
4. How to Find the LCM of 20420 and 20427?
Answer:
Least Common Multiple of 20420 and 20427 = 417119340
Step 1: Find the prime factorization of 20420
20420 = 2 x 2 x 5 x 1021
Step 2: Find the prime factorization of 20427
20427 = 3 x 11 x 619
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 417119340 = 2 x 2 x 3 x 5 x 11 x 619 x 1021
Step 4: Therefore, the least common multiple of 20420 and 20427 is 417119340.