Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1872 and 1880 the smallest integer that is 439920 that is divisible by both numbers.
Least Common Multiple (LCM) of 1872 and 1880 is 439920.
LCM(1872,1880) = 439920
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 1872 and 1880. First we will calculate the prime factors of 1872 and 1880.
Prime Factorization of 1872
2 | 1872 |
2 | 936 |
2 | 468 |
2 | 234 |
3 | 117 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 1872 are 2, 3,13. Prime factorization of 1872 in exponential form is:
1872 = 24×32×131
Prime Factorization of 1880
2 | 1880 |
2 | 940 |
2 | 470 |
5 | 235 |
47 | 47 |
1 |
Prime factors of 1880 are 2, 5,47. Prime factorization of 1880 in exponential form is:
1880 = 23×51×471
Now multiplying the highest exponent prime factors to calculate the LCM of 1872 and 1880.
LCM(1872,1880) = 24×32×51×131×471
LCM(1872,1880) = 439920
Factors of 1872
List of positive integer factors of 1872 that divides 1872 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872
Factors of 1880
List of positive integer factors of 1880 that divides 1880 without a remainder.
1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1872 and 1880, than apply into the LCM equation.
GCF(1872,1880) = 8
LCM(1872,1880) = ( 1872 × 1880) / 8
LCM(1872,1880) = 3519360 / 8
LCM(1872,1880) = 439920
(i) The LCM of 1880 and 1872 is associative
LCM of 1872 and 1880 = LCM of 1880 and 1872
1. What is the LCM of 1872 and 1880?
Answer: LCM of 1872 and 1880 is 439920.
2. What are the Factors of 1872?
Answer: Factors of 1872 are 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872. There are 30 integers that are factors of 1872. The greatest factor of 1872 is 1872.
3. What are the Factors of 1880?
Answer: Factors of 1880 are 1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880. There are 16 integers that are factors of 1880. The greatest factor of 1880 is 1880.
4. How to Find the LCM of 1872 and 1880?
Answer:
Least Common Multiple of 1872 and 1880 = 439920
Step 1: Find the prime factorization of 1872
1872 = 2 x 2 x 2 x 2 x 3 x 3 x 13
Step 2: Find the prime factorization of 1880
1880 = 2 x 2 x 2 x 5 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 439920 = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 13 x 47
Step 4: Therefore, the least common multiple of 1872 and 1880 is 439920.