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 1870 the smallest integer that is 1742840 that is divisible by both numbers.
Least Common Multiple (LCM) of 1864 and 1870 is 1742840.
LCM(1864,1870) = 1742840
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 1870. First we will calculate the prime factors of 1864 and 1870.
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 1870
2 | 1870 |
5 | 935 |
11 | 187 |
17 | 17 |
1 |
Prime factors of 1870 are 2, 5, 11,17. Prime factorization of 1870 in exponential form is:
1870 = 21×51×111×171
Now multiplying the highest exponent prime factors to calculate the LCM of 1864 and 1870.
LCM(1864,1870) = 23×51×111×171×2331
LCM(1864,1870) = 1742840
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 1870
List of positive integer factors of 1870 that divides 1870 without a remainder.
1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1864 and 1870, than apply into the LCM equation.
GCF(1864,1870) = 2
LCM(1864,1870) = ( 1864 × 1870) / 2
LCM(1864,1870) = 3485680 / 2
LCM(1864,1870) = 1742840
(i) The LCM of 1870 and 1864 is associative
LCM of 1864 and 1870 = LCM of 1870 and 1864
1. What is the LCM of 1864 and 1870?
Answer: LCM of 1864 and 1870 is 1742840.
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 1870?
Answer: Factors of 1870 are 1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870. There are 16 integers that are factors of 1870. The greatest factor of 1870 is 1870.
4. How to Find the LCM of 1864 and 1870?
Answer:
Least Common Multiple of 1864 and 1870 = 1742840
Step 1: Find the prime factorization of 1864
1864 = 2 x 2 x 2 x 233
Step 2: Find the prime factorization of 1870
1870 = 2 x 5 x 11 x 17
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1742840 = 2 x 2 x 2 x 5 x 11 x 17 x 233
Step 4: Therefore, the least common multiple of 1864 and 1870 is 1742840.