Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 423 and 427 the smallest integer that is 180621 that is divisible by both numbers.
Least Common Multiple (LCM) of 423 and 427 is 180621.
LCM(423,427) = 180621
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 423 and 427. First we will calculate the prime factors of 423 and 427.
Prime Factorization of 423
3 | 423 |
3 | 141 |
47 | 47 |
1 |
Prime factors of 423 are 3,47. Prime factorization of 423 in exponential form is:
423 = 32×471
Prime Factorization of 427
7 | 427 |
61 | 61 |
1 |
Prime factors of 427 are 7,61. Prime factorization of 427 in exponential form is:
427 = 71×611
Now multiplying the highest exponent prime factors to calculate the LCM of 423 and 427.
LCM(423,427) = 32×71×471×611
LCM(423,427) = 180621
Factors of 423
List of positive integer factors of 423 that divides 423 without a remainder.
1, 3, 9, 47, 141, 423
Factors of 427
List of positive integer factors of 427 that divides 427 without a remainder.
1, 7, 61, 427
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 423 and 427, than apply into the LCM equation.
GCF(423,427) = 1
LCM(423,427) = ( 423 × 427) / 1
LCM(423,427) = 180621 / 1
LCM(423,427) = 180621
(i) The LCM of 427 and 423 is associative
LCM of 423 and 427 = LCM of 427 and 423
1. What is the LCM of 423 and 427?
Answer: LCM of 423 and 427 is 180621.
2. What are the Factors of 423?
Answer: Factors of 423 are 1, 3, 9, 47, 141, 423. There are 6 integers that are factors of 423. The greatest factor of 423 is 423.
3. What are the Factors of 427?
Answer: Factors of 427 are 1, 7, 61, 427. There are 4 integers that are factors of 427. The greatest factor of 427 is 427.
4. How to Find the LCM of 423 and 427?
Answer:
Least Common Multiple of 423 and 427 = 180621
Step 1: Find the prime factorization of 423
423 = 3 x 3 x 47
Step 2: Find the prime factorization of 427
427 = 7 x 61
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 180621 = 3 x 3 x 7 x 47 x 61
Step 4: Therefore, the least common multiple of 423 and 427 is 180621.