Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 438 and 446 the smallest integer that is 97674 that is divisible by both numbers.
Least Common Multiple (LCM) of 438 and 446 is 97674.
LCM(438,446) = 97674
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 438 and 446. First we will calculate the prime factors of 438 and 446.
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
Prime Factorization of 446
2 | 446 |
223 | 223 |
1 |
Prime factors of 446 are 2,223. Prime factorization of 446 in exponential form is:
446 = 21×2231
Now multiplying the highest exponent prime factors to calculate the LCM of 438 and 446.
LCM(438,446) = 21×31×731×2231
LCM(438,446) = 97674
Factors of 438
List of positive integer factors of 438 that divides 438 without a remainder.
1, 2, 3, 6, 73, 146, 219, 438
Factors of 446
List of positive integer factors of 446 that divides 446 without a remainder.
1, 2, 223, 446
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 438 and 446, than apply into the LCM equation.
GCF(438,446) = 2
LCM(438,446) = ( 438 × 446) / 2
LCM(438,446) = 195348 / 2
LCM(438,446) = 97674
(i) The LCM of 446 and 438 is associative
LCM of 438 and 446 = LCM of 446 and 438
1. What is the LCM of 438 and 446?
Answer: LCM of 438 and 446 is 97674.
2. 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.
3. What are the Factors of 446?
Answer: Factors of 446 are 1, 2, 223, 446. There are 4 integers that are factors of 446. The greatest factor of 446 is 446.
4. How to Find the LCM of 438 and 446?
Answer:
Least Common Multiple of 438 and 446 = 97674
Step 1: Find the prime factorization of 438
438 = 2 x 3 x 73
Step 2: Find the prime factorization of 446
446 = 2 x 223
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 97674 = 2 x 3 x 73 x 223
Step 4: Therefore, the least common multiple of 438 and 446 is 97674.