Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4221 and 4228 the smallest integer that is 2549484 that is divisible by both numbers.
Least Common Multiple (LCM) of 4221 and 4228 is 2549484.
LCM(4221,4228) = 2549484
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 4221 and 4228. First we will calculate the prime factors of 4221 and 4228.
Prime Factorization of 4221
3 | 4221 |
3 | 1407 |
7 | 469 |
67 | 67 |
1 |
Prime factors of 4221 are 3, 7,67. Prime factorization of 4221 in exponential form is:
4221 = 32×71×671
Prime Factorization of 4228
2 | 4228 |
2 | 2114 |
7 | 1057 |
151 | 151 |
1 |
Prime factors of 4228 are 2, 7,151. Prime factorization of 4228 in exponential form is:
4228 = 22×71×1511
Now multiplying the highest exponent prime factors to calculate the LCM of 4221 and 4228.
LCM(4221,4228) = 22×32×71×671×1511
LCM(4221,4228) = 2549484
Factors of 4221
List of positive integer factors of 4221 that divides 4221 without a remainder.
1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221
Factors of 4228
List of positive integer factors of 4228 that divides 4228 without a remainder.
1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4221 and 4228, than apply into the LCM equation.
GCF(4221,4228) = 7
LCM(4221,4228) = ( 4221 × 4228) / 7
LCM(4221,4228) = 17846388 / 7
LCM(4221,4228) = 2549484
(i) The LCM of 4228 and 4221 is associative
LCM of 4221 and 4228 = LCM of 4228 and 4221
1. What is the LCM of 4221 and 4228?
Answer: LCM of 4221 and 4228 is 2549484.
2. What are the Factors of 4221?
Answer: Factors of 4221 are 1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221. There are 12 integers that are factors of 4221. The greatest factor of 4221 is 4221.
3. What are the Factors of 4228?
Answer: Factors of 4228 are 1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228. There are 12 integers that are factors of 4228. The greatest factor of 4228 is 4228.
4. How to Find the LCM of 4221 and 4228?
Answer:
Least Common Multiple of 4221 and 4228 = 2549484
Step 1: Find the prime factorization of 4221
4221 = 3 x 3 x 7 x 67
Step 2: Find the prime factorization of 4228
4228 = 2 x 2 x 7 x 151
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2549484 = 2 x 2 x 3 x 3 x 7 x 67 x 151
Step 4: Therefore, the least common multiple of 4221 and 4228 is 2549484.