Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 5640 and 5644 the smallest integer that is 7958040 that is divisible by both numbers.
Least Common Multiple (LCM) of 5640 and 5644 is 7958040.
LCM(5640,5644) = 7958040
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 5640 and 5644. First we will calculate the prime factors of 5640 and 5644.
Prime Factorization of 5640
2 | 5640 |
2 | 2820 |
2 | 1410 |
3 | 705 |
5 | 235 |
47 | 47 |
1 |
Prime factors of 5640 are 2, 3, 5,47. Prime factorization of 5640 in exponential form is:
5640 = 23×31×51×471
Prime Factorization of 5644
2 | 5644 |
2 | 2822 |
17 | 1411 |
83 | 83 |
1 |
Prime factors of 5644 are 2, 17,83. Prime factorization of 5644 in exponential form is:
5644 = 22×171×831
Now multiplying the highest exponent prime factors to calculate the LCM of 5640 and 5644.
LCM(5640,5644) = 23×31×51×171×471×831
LCM(5640,5644) = 7958040
Factors of 5640
List of positive integer factors of 5640 that divides 5640 without a remainder.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 5640
Factors of 5644
List of positive integer factors of 5644 that divides 5644 without a remainder.
1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 5644
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5640 and 5644, than apply into the LCM equation.
GCF(5640,5644) = 4
LCM(5640,5644) = ( 5640 × 5644) / 4
LCM(5640,5644) = 31832160 / 4
LCM(5640,5644) = 7958040
(i) The LCM of 5644 and 5640 is associative
LCM of 5640 and 5644 = LCM of 5644 and 5640
1. What is the LCM of 5640 and 5644?
Answer: LCM of 5640 and 5644 is 7958040.
2. What are the Factors of 5640?
Answer: Factors of 5640 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 5640. There are 32 integers that are factors of 5640. The greatest factor of 5640 is 5640.
3. What are the Factors of 5644?
Answer: Factors of 5644 are 1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 5644. There are 12 integers that are factors of 5644. The greatest factor of 5644 is 5644.
4. How to Find the LCM of 5640 and 5644?
Answer:
Least Common Multiple of 5640 and 5644 = 7958040
Step 1: Find the prime factorization of 5640
5640 = 2 x 2 x 2 x 3 x 5 x 47
Step 2: Find the prime factorization of 5644
5644 = 2 x 2 x 17 x 83
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7958040 = 2 x 2 x 2 x 3 x 5 x 17 x 47 x 83
Step 4: Therefore, the least common multiple of 5640 and 5644 is 7958040.