Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8420 and 8427 the smallest integer that is 70955340 that is divisible by both numbers.
Least Common Multiple (LCM) of 8420 and 8427 is 70955340.
LCM(8420,8427) = 70955340
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 8420 and 8427. First we will calculate the prime factors of 8420 and 8427.
Prime Factorization of 8420
2 | 8420 |
2 | 4210 |
5 | 2105 |
421 | 421 |
1 |
Prime factors of 8420 are 2, 5,421. Prime factorization of 8420 in exponential form is:
8420 = 22×51×4211
Prime Factorization of 8427
3 | 8427 |
53 | 2809 |
53 | 53 |
1 |
Prime factors of 8427 are 3,53. Prime factorization of 8427 in exponential form is:
8427 = 31×532
Now multiplying the highest exponent prime factors to calculate the LCM of 8420 and 8427.
LCM(8420,8427) = 22×31×51×532×4211
LCM(8420,8427) = 70955340
Factors of 8420
List of positive integer factors of 8420 that divides 8420 without a remainder.
1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420
Factors of 8427
List of positive integer factors of 8427 that divides 8427 without a remainder.
1, 3, 53, 159, 2809, 8427
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8420 and 8427, than apply into the LCM equation.
GCF(8420,8427) = 1
LCM(8420,8427) = ( 8420 × 8427) / 1
LCM(8420,8427) = 70955340 / 1
LCM(8420,8427) = 70955340
(i) The LCM of 8427 and 8420 is associative
LCM of 8420 and 8427 = LCM of 8427 and 8420
1. What is the LCM of 8420 and 8427?
Answer: LCM of 8420 and 8427 is 70955340.
2. What are the Factors of 8420?
Answer: Factors of 8420 are 1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420. There are 12 integers that are factors of 8420. The greatest factor of 8420 is 8420.
3. What are the Factors of 8427?
Answer: Factors of 8427 are 1, 3, 53, 159, 2809, 8427. There are 6 integers that are factors of 8427. The greatest factor of 8427 is 8427.
4. How to Find the LCM of 8420 and 8427?
Answer:
Least Common Multiple of 8420 and 8427 = 70955340
Step 1: Find the prime factorization of 8420
8420 = 2 x 2 x 5 x 421
Step 2: Find the prime factorization of 8427
8427 = 3 x 53 x 53
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 70955340 = 2 x 2 x 3 x 5 x 53 x 53 x 421
Step 4: Therefore, the least common multiple of 8420 and 8427 is 70955340.