Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 424 and 425 the smallest integer that is 180200 that is divisible by both numbers.
Least Common Multiple (LCM) of 424 and 425 is 180200.
LCM(424,425) = 180200
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 424 and 425. First we will calculate the prime factors of 424 and 425.
Prime Factorization of 424
2 | 424 |
2 | 212 |
2 | 106 |
53 | 53 |
1 |
Prime factors of 424 are 2,53. Prime factorization of 424 in exponential form is:
424 = 23×531
Prime Factorization of 425
5 | 425 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 425 are 5,17. Prime factorization of 425 in exponential form is:
425 = 52×171
Now multiplying the highest exponent prime factors to calculate the LCM of 424 and 425.
LCM(424,425) = 23×52×171×531
LCM(424,425) = 180200
Factors of 424
List of positive integer factors of 424 that divides 424 without a remainder.
1, 2, 4, 8, 53, 106, 212, 424
Factors of 425
List of positive integer factors of 425 that divides 425 without a remainder.
1, 5, 17, 25, 85, 425
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 424 and 425, than apply into the LCM equation.
GCF(424,425) = 1
LCM(424,425) = ( 424 × 425) / 1
LCM(424,425) = 180200 / 1
LCM(424,425) = 180200
(i) The LCM of 425 and 424 is associative
LCM of 424 and 425 = LCM of 425 and 424
1. What is the LCM of 424 and 425?
Answer: LCM of 424 and 425 is 180200.
2. What are the Factors of 424?
Answer: Factors of 424 are 1, 2, 4, 8, 53, 106, 212, 424. There are 8 integers that are factors of 424. The greatest factor of 424 is 424.
3. What are the Factors of 425?
Answer: Factors of 425 are 1, 5, 17, 25, 85, 425. There are 6 integers that are factors of 425. The greatest factor of 425 is 425.
4. How to Find the LCM of 424 and 425?
Answer:
Least Common Multiple of 424 and 425 = 180200
Step 1: Find the prime factorization of 424
424 = 2 x 2 x 2 x 53
Step 2: Find the prime factorization of 425
425 = 5 x 5 x 17
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 180200 = 2 x 2 x 2 x 5 x 5 x 17 x 53
Step 4: Therefore, the least common multiple of 424 and 425 is 180200.