Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1864 and 1872 the smallest integer that is 436176 that is divisible by both numbers.
Least Common Multiple (LCM) of 1864 and 1872 is 436176.
LCM(1864,1872) = 436176
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 1864 and 1872. First we will calculate the prime factors of 1864 and 1872.
Prime Factorization of 1864
2 | 1864 |
2 | 932 |
2 | 466 |
233 | 233 |
1 |
Prime factors of 1864 are 2,233. Prime factorization of 1864 in exponential form is:
1864 = 23×2331
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
Now multiplying the highest exponent prime factors to calculate the LCM of 1864 and 1872.
LCM(1864,1872) = 24×32×131×2331
LCM(1864,1872) = 436176
Factors of 1864
List of positive integer factors of 1864 that divides 1864 without a remainder.
1, 2, 4, 8, 233, 466, 932, 1864
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1864 and 1872, than apply into the LCM equation.
GCF(1864,1872) = 8
LCM(1864,1872) = ( 1864 × 1872) / 8
LCM(1864,1872) = 3489408 / 8
LCM(1864,1872) = 436176
(i) The LCM of 1872 and 1864 is associative
LCM of 1864 and 1872 = LCM of 1872 and 1864
1. What is the LCM of 1864 and 1872?
Answer: LCM of 1864 and 1872 is 436176.
2. What are the Factors of 1864?
Answer: Factors of 1864 are 1, 2, 4, 8, 233, 466, 932, 1864. There are 8 integers that are factors of 1864. The greatest factor of 1864 is 1864.
3. 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.
4. How to Find the LCM of 1864 and 1872?
Answer:
Least Common Multiple of 1864 and 1872 = 436176
Step 1: Find the prime factorization of 1864
1864 = 2 x 2 x 2 x 233
Step 2: Find the prime factorization of 1872
1872 = 2 x 2 x 2 x 2 x 3 x 3 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 436176 = 2 x 2 x 2 x 2 x 3 x 3 x 13 x 233
Step 4: Therefore, the least common multiple of 1864 and 1872 is 436176.