Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8438 and 8445 the smallest integer that is 71258910 that is divisible by both numbers.
Least Common Multiple (LCM) of 8438 and 8445 is 71258910.
LCM(8438,8445) = 71258910
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 8438 and 8445. First we will calculate the prime factors of 8438 and 8445.
Prime Factorization of 8438
2 | 8438 |
4219 | 4219 |
1 |
Prime factors of 8438 are 2,4219. Prime factorization of 8438 in exponential form is:
8438 = 21×42191
Prime Factorization of 8445
3 | 8445 |
5 | 2815 |
563 | 563 |
1 |
Prime factors of 8445 are 3, 5,563. Prime factorization of 8445 in exponential form is:
8445 = 31×51×5631
Now multiplying the highest exponent prime factors to calculate the LCM of 8438 and 8445.
LCM(8438,8445) = 21×31×51×5631×42191
LCM(8438,8445) = 71258910
Factors of 8438
List of positive integer factors of 8438 that divides 8438 without a remainder.
1, 2, 4219, 8438
Factors of 8445
List of positive integer factors of 8445 that divides 8445 without a remainder.
1, 3, 5, 15, 563, 1689, 2815, 8445
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8438 and 8445, than apply into the LCM equation.
GCF(8438,8445) = 1
LCM(8438,8445) = ( 8438 × 8445) / 1
LCM(8438,8445) = 71258910 / 1
LCM(8438,8445) = 71258910
(i) The LCM of 8445 and 8438 is associative
LCM of 8438 and 8445 = LCM of 8445 and 8438
1. What is the LCM of 8438 and 8445?
Answer: LCM of 8438 and 8445 is 71258910.
2. What are the Factors of 8438?
Answer: Factors of 8438 are 1, 2, 4219, 8438. There are 4 integers that are factors of 8438. The greatest factor of 8438 is 8438.
3. What are the Factors of 8445?
Answer: Factors of 8445 are 1, 3, 5, 15, 563, 1689, 2815, 8445. There are 8 integers that are factors of 8445. The greatest factor of 8445 is 8445.
4. How to Find the LCM of 8438 and 8445?
Answer:
Least Common Multiple of 8438 and 8445 = 71258910
Step 1: Find the prime factorization of 8438
8438 = 2 x 4219
Step 2: Find the prime factorization of 8445
8445 = 3 x 5 x 563
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 71258910 = 2 x 3 x 5 x 563 x 4219
Step 4: Therefore, the least common multiple of 8438 and 8445 is 71258910.