Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1786 and 1792 the smallest integer that is 1600256 that is divisible by both numbers.
Least Common Multiple (LCM) of 1786 and 1792 is 1600256.
LCM(1786,1792) = 1600256
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 1786 and 1792. First we will calculate the prime factors of 1786 and 1792.
Prime Factorization of 1786
2 | 1786 |
19 | 893 |
47 | 47 |
1 |
Prime factors of 1786 are 2, 19,47. Prime factorization of 1786 in exponential form is:
1786 = 21×191×471
Prime Factorization of 1792
2 | 1792 |
2 | 896 |
2 | 448 |
2 | 224 |
2 | 112 |
2 | 56 |
2 | 28 |
2 | 14 |
7 | 7 |
1 |
Prime factors of 1792 are 2,7. Prime factorization of 1792 in exponential form is:
1792 = 28×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1786 and 1792.
LCM(1786,1792) = 28×71×191×471
LCM(1786,1792) = 1600256
Factors of 1786
List of positive integer factors of 1786 that divides 1786 without a remainder.
1, 2, 19, 38, 47, 94, 893, 1786
Factors of 1792
List of positive integer factors of 1792 that divides 1792 without a remainder.
1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1786 and 1792, than apply into the LCM equation.
GCF(1786,1792) = 2
LCM(1786,1792) = ( 1786 × 1792) / 2
LCM(1786,1792) = 3200512 / 2
LCM(1786,1792) = 1600256
(i) The LCM of 1792 and 1786 is associative
LCM of 1786 and 1792 = LCM of 1792 and 1786
1. What is the LCM of 1786 and 1792?
Answer: LCM of 1786 and 1792 is 1600256.
2. What are the Factors of 1786?
Answer: Factors of 1786 are 1, 2, 19, 38, 47, 94, 893, 1786. There are 8 integers that are factors of 1786. The greatest factor of 1786 is 1786.
3. What are the Factors of 1792?
Answer: Factors of 1792 are 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792. There are 18 integers that are factors of 1792. The greatest factor of 1792 is 1792.
4. How to Find the LCM of 1786 and 1792?
Answer:
Least Common Multiple of 1786 and 1792 = 1600256
Step 1: Find the prime factorization of 1786
1786 = 2 x 19 x 47
Step 2: Find the prime factorization of 1792
1792 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1600256 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 19 x 47
Step 4: Therefore, the least common multiple of 1786 and 1792 is 1600256.