Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1890 and 1896 the smallest integer that is 597240 that is divisible by both numbers.
Least Common Multiple (LCM) of 1890 and 1896 is 597240.
LCM(1890,1896) = 597240
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 1890 and 1896. First we will calculate the prime factors of 1890 and 1896.
Prime Factorization of 1890
2 | 1890 |
3 | 945 |
3 | 315 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 1890 are 2, 3, 5,7. Prime factorization of 1890 in exponential form is:
1890 = 21×33×51×71
Prime Factorization of 1896
2 | 1896 |
2 | 948 |
2 | 474 |
3 | 237 |
79 | 79 |
1 |
Prime factors of 1896 are 2, 3,79. Prime factorization of 1896 in exponential form is:
1896 = 23×31×791
Now multiplying the highest exponent prime factors to calculate the LCM of 1890 and 1896.
LCM(1890,1896) = 23×33×51×71×791
LCM(1890,1896) = 597240
Factors of 1890
List of positive integer factors of 1890 that divides 1890 without a remainder.
1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890
Factors of 1896
List of positive integer factors of 1896 that divides 1896 without a remainder.
1, 2, 3, 4, 6, 8, 12, 24, 79, 158, 237, 316, 474, 632, 948, 1896
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1890 and 1896, than apply into the LCM equation.
GCF(1890,1896) = 6
LCM(1890,1896) = ( 1890 × 1896) / 6
LCM(1890,1896) = 3583440 / 6
LCM(1890,1896) = 597240
(i) The LCM of 1896 and 1890 is associative
LCM of 1890 and 1896 = LCM of 1896 and 1890
1. What is the LCM of 1890 and 1896?
Answer: LCM of 1890 and 1896 is 597240.
2. What are the Factors of 1890?
Answer: Factors of 1890 are 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890. There are 32 integers that are factors of 1890. The greatest factor of 1890 is 1890.
3. What are the Factors of 1896?
Answer: Factors of 1896 are 1, 2, 3, 4, 6, 8, 12, 24, 79, 158, 237, 316, 474, 632, 948, 1896. There are 16 integers that are factors of 1896. The greatest factor of 1896 is 1896.
4. How to Find the LCM of 1890 and 1896?
Answer:
Least Common Multiple of 1890 and 1896 = 597240
Step 1: Find the prime factorization of 1890
1890 = 2 x 3 x 3 x 3 x 5 x 7
Step 2: Find the prime factorization of 1896
1896 = 2 x 2 x 2 x 3 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 = 597240 = 2 x 2 x 2 x 3 x 3 x 3 x 5 x 7 x 79
Step 4: Therefore, the least common multiple of 1890 and 1896 is 597240.