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 434 the smallest integer that is 92876 that is divisible by both numbers.
Least Common Multiple (LCM) of 428 and 434 is 92876.
LCM(428,434) = 92876
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 434. First we will calculate the prime factors of 428 and 434.
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 434
2 | 434 |
7 | 217 |
31 | 31 |
1 |
Prime factors of 434 are 2, 7,31. Prime factorization of 434 in exponential form is:
434 = 21×71×311
Now multiplying the highest exponent prime factors to calculate the LCM of 428 and 434.
LCM(428,434) = 22×71×311×1071
LCM(428,434) = 92876
Factors of 428
List of positive integer factors of 428 that divides 428 without a remainder.
1, 2, 4, 107, 214, 428
Factors of 434
List of positive integer factors of 434 that divides 434 without a remainder.
1, 2, 7, 14, 31, 62, 217, 434
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 428 and 434, than apply into the LCM equation.
GCF(428,434) = 2
LCM(428,434) = ( 428 × 434) / 2
LCM(428,434) = 185752 / 2
LCM(428,434) = 92876
(i) The LCM of 434 and 428 is associative
LCM of 428 and 434 = LCM of 434 and 428
1. What is the LCM of 428 and 434?
Answer: LCM of 428 and 434 is 92876.
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 434?
Answer: Factors of 434 are 1, 2, 7, 14, 31, 62, 217, 434. There are 8 integers that are factors of 434. The greatest factor of 434 is 434.
4. How to Find the LCM of 428 and 434?
Answer:
Least Common Multiple of 428 and 434 = 92876
Step 1: Find the prime factorization of 428
428 = 2 x 2 x 107
Step 2: Find the prime factorization of 434
434 = 2 x 7 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 92876 = 2 x 2 x 7 x 31 x 107
Step 4: Therefore, the least common multiple of 428 and 434 is 92876.