Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 430 and 438 the smallest integer that is 94170 that is divisible by both numbers.
Least Common Multiple (LCM) of 430 and 438 is 94170.
LCM(430,438) = 94170
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 430 and 438. First we will calculate the prime factors of 430 and 438.
Prime Factorization of 430
2 | 430 |
5 | 215 |
43 | 43 |
1 |
Prime factors of 430 are 2, 5,43. Prime factorization of 430 in exponential form is:
430 = 21×51×431
Prime Factorization of 438
2 | 438 |
3 | 219 |
73 | 73 |
1 |
Prime factors of 438 are 2, 3,73. Prime factorization of 438 in exponential form is:
438 = 21×31×731
Now multiplying the highest exponent prime factors to calculate the LCM of 430 and 438.
LCM(430,438) = 21×31×51×431×731
LCM(430,438) = 94170
Factors of 430
List of positive integer factors of 430 that divides 430 without a remainder.
1, 2, 5, 10, 43, 86, 215, 430
Factors of 438
List of positive integer factors of 438 that divides 438 without a remainder.
1, 2, 3, 6, 73, 146, 219, 438
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 430 and 438, than apply into the LCM equation.
GCF(430,438) = 2
LCM(430,438) = ( 430 × 438) / 2
LCM(430,438) = 188340 / 2
LCM(430,438) = 94170
(i) The LCM of 438 and 430 is associative
LCM of 430 and 438 = LCM of 438 and 430
1. What is the LCM of 430 and 438?
Answer: LCM of 430 and 438 is 94170.
2. What are the Factors of 430?
Answer: Factors of 430 are 1, 2, 5, 10, 43, 86, 215, 430. There are 8 integers that are factors of 430. The greatest factor of 430 is 430.
3. What are the Factors of 438?
Answer: Factors of 438 are 1, 2, 3, 6, 73, 146, 219, 438. There are 8 integers that are factors of 438. The greatest factor of 438 is 438.
4. How to Find the LCM of 430 and 438?
Answer:
Least Common Multiple of 430 and 438 = 94170
Step 1: Find the prime factorization of 430
430 = 2 x 5 x 43
Step 2: Find the prime factorization of 438
438 = 2 x 3 x 73
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 94170 = 2 x 3 x 5 x 43 x 73
Step 4: Therefore, the least common multiple of 430 and 438 is 94170.