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 430 the smallest integer that is 92020 that is divisible by both numbers.
Least Common Multiple (LCM) of 428 and 430 is 92020.
LCM(428,430) = 92020
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 430. First we will calculate the prime factors of 428 and 430.
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 430
2 | 430 |
5 | 215 |
43 | 43 |
1 |
Prime factors of 430 are 2, 5,43. Prime factorization of 430 in exponential form is:
430 = 21×51×431
Now multiplying the highest exponent prime factors to calculate the LCM of 428 and 430.
LCM(428,430) = 22×51×431×1071
LCM(428,430) = 92020
Factors of 428
List of positive integer factors of 428 that divides 428 without a remainder.
1, 2, 4, 107, 214, 428
Factors of 430
List of positive integer factors of 430 that divides 430 without a remainder.
1, 2, 5, 10, 43, 86, 215, 430
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 428 and 430, than apply into the LCM equation.
GCF(428,430) = 2
LCM(428,430) = ( 428 × 430) / 2
LCM(428,430) = 184040 / 2
LCM(428,430) = 92020
(i) The LCM of 430 and 428 is associative
LCM of 428 and 430 = LCM of 430 and 428
1. What is the LCM of 428 and 430?
Answer: LCM of 428 and 430 is 92020.
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 430?
Answer: Factors of 430 are 1, 2, 5, 10, 43, 86, 215, 430. There are 8 integers that are factors of 430. The greatest factor of 430 is 430.
4. How to Find the LCM of 428 and 430?
Answer:
Least Common Multiple of 428 and 430 = 92020
Step 1: Find the prime factorization of 428
428 = 2 x 2 x 107
Step 2: Find the prime factorization of 430
430 = 2 x 5 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 92020 = 2 x 2 x 5 x 43 x 107
Step 4: Therefore, the least common multiple of 428 and 430 is 92020.