Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 428 and 435 the smallest integer that is 186180 that is divisible by both numbers.
Least Common Multiple (LCM) of 428 and 435 is 186180.
LCM(428,435) = 186180
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 428 and 435. First we will calculate the prime factors of 428 and 435.
Prime Factorization of 428
2 | 428 |
2 | 214 |
107 | 107 |
1 |
Prime factors of 428 are 2,107. Prime factorization of 428 in exponential form is:
428 = 22×1071
Prime Factorization of 435
3 | 435 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 435 are 3, 5,29. Prime factorization of 435 in exponential form is:
435 = 31×51×291
Now multiplying the highest exponent prime factors to calculate the LCM of 428 and 435.
LCM(428,435) = 22×31×51×291×1071
LCM(428,435) = 186180
Factors of 428
List of positive integer factors of 428 that divides 428 without a remainder.
1, 2, 4, 107, 214, 428
Factors of 435
List of positive integer factors of 435 that divides 435 without a remainder.
1, 3, 5, 15, 29, 87, 145, 435
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 428 and 435, than apply into the LCM equation.
GCF(428,435) = 1
LCM(428,435) = ( 428 × 435) / 1
LCM(428,435) = 186180 / 1
LCM(428,435) = 186180
(i) The LCM of 435 and 428 is associative
LCM of 428 and 435 = LCM of 435 and 428
1. What is the LCM of 428 and 435?
Answer: LCM of 428 and 435 is 186180.
2. What are the Factors of 428?
Answer: Factors of 428 are 1, 2, 4, 107, 214, 428. There are 6 integers that are factors of 428. The greatest factor of 428 is 428.
3. What are the Factors of 435?
Answer: Factors of 435 are 1, 3, 5, 15, 29, 87, 145, 435. There are 8 integers that are factors of 435. The greatest factor of 435 is 435.
4. How to Find the LCM of 428 and 435?
Answer:
Least Common Multiple of 428 and 435 = 186180
Step 1: Find the prime factorization of 428
428 = 2 x 2 x 107
Step 2: Find the prime factorization of 435
435 = 3 x 5 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 186180 = 2 x 2 x 3 x 5 x 29 x 107
Step 4: Therefore, the least common multiple of 428 and 435 is 186180.