Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 10420 and 10428 the smallest integer that is 27164940 that is divisible by both numbers.
Least Common Multiple (LCM) of 10420 and 10428 is 27164940.
LCM(10420,10428) = 27164940
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 10420 and 10428. First we will calculate the prime factors of 10420 and 10428.
Prime Factorization of 10420
2 | 10420 |
2 | 5210 |
5 | 2605 |
521 | 521 |
1 |
Prime factors of 10420 are 2, 5,521. Prime factorization of 10420 in exponential form is:
10420 = 22×51×5211
Prime Factorization of 10428
2 | 10428 |
2 | 5214 |
3 | 2607 |
11 | 869 |
79 | 79 |
1 |
Prime factors of 10428 are 2, 3, 11,79. Prime factorization of 10428 in exponential form is:
10428 = 22×31×111×791
Now multiplying the highest exponent prime factors to calculate the LCM of 10420 and 10428.
LCM(10420,10428) = 22×31×51×111×791×5211
LCM(10420,10428) = 27164940
Factors of 10420
List of positive integer factors of 10420 that divides 10420 without a remainder.
1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420
Factors of 10428
List of positive integer factors of 10428 that divides 10428 without a remainder.
1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 79, 132, 158, 237, 316, 474, 869, 948, 1738, 2607, 3476, 5214, 10428
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10420 and 10428, than apply into the LCM equation.
GCF(10420,10428) = 4
LCM(10420,10428) = ( 10420 × 10428) / 4
LCM(10420,10428) = 108659760 / 4
LCM(10420,10428) = 27164940
(i) The LCM of 10428 and 10420 is associative
LCM of 10420 and 10428 = LCM of 10428 and 10420
1. What is the LCM of 10420 and 10428?
Answer: LCM of 10420 and 10428 is 27164940.
2. What are the Factors of 10420?
Answer: Factors of 10420 are 1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420. There are 12 integers that are factors of 10420. The greatest factor of 10420 is 10420.
3. What are the Factors of 10428?
Answer: Factors of 10428 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 79, 132, 158, 237, 316, 474, 869, 948, 1738, 2607, 3476, 5214, 10428. There are 24 integers that are factors of 10428. The greatest factor of 10428 is 10428.
4. How to Find the LCM of 10420 and 10428?
Answer:
Least Common Multiple of 10420 and 10428 = 27164940
Step 1: Find the prime factorization of 10420
10420 = 2 x 2 x 5 x 521
Step 2: Find the prime factorization of 10428
10428 = 2 x 2 x 3 x 11 x 79
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 27164940 = 2 x 2 x 3 x 5 x 11 x 79 x 521
Step 4: Therefore, the least common multiple of 10420 and 10428 is 27164940.