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 436 the smallest integer that is 46652 that is divisible by both numbers.
Least Common Multiple (LCM) of 428 and 436 is 46652.
LCM(428,436) = 46652
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 436. First we will calculate the prime factors of 428 and 436.
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 436
2 | 436 |
2 | 218 |
109 | 109 |
1 |
Prime factors of 436 are 2,109. Prime factorization of 436 in exponential form is:
436 = 22×1091
Now multiplying the highest exponent prime factors to calculate the LCM of 428 and 436.
LCM(428,436) = 22×1071×1091
LCM(428,436) = 46652
Factors of 428
List of positive integer factors of 428 that divides 428 without a remainder.
1, 2, 4, 107, 214, 428
Factors of 436
List of positive integer factors of 436 that divides 436 without a remainder.
1, 2, 4, 109, 218, 436
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 428 and 436, than apply into the LCM equation.
GCF(428,436) = 4
LCM(428,436) = ( 428 × 436) / 4
LCM(428,436) = 186608 / 4
LCM(428,436) = 46652
(i) The LCM of 436 and 428 is associative
LCM of 428 and 436 = LCM of 436 and 428
1. What is the LCM of 428 and 436?
Answer: LCM of 428 and 436 is 46652.
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 436?
Answer: Factors of 436 are 1, 2, 4, 109, 218, 436. There are 6 integers that are factors of 436. The greatest factor of 436 is 436.
4. How to Find the LCM of 428 and 436?
Answer:
Least Common Multiple of 428 and 436 = 46652
Step 1: Find the prime factorization of 428
428 = 2 x 2 x 107
Step 2: Find the prime factorization of 436
436 = 2 x 2 x 109
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 46652 = 2 x 2 x 107 x 109
Step 4: Therefore, the least common multiple of 428 and 436 is 46652.