Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1674 and 1680 the smallest integer that is 468720 that is divisible by both numbers.
Least Common Multiple (LCM) of 1674 and 1680 is 468720.
LCM(1674,1680) = 468720
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 1674 and 1680. First we will calculate the prime factors of 1674 and 1680.
Prime Factorization of 1674
2 | 1674 |
3 | 837 |
3 | 279 |
3 | 93 |
31 | 31 |
1 |
Prime factors of 1674 are 2, 3,31. Prime factorization of 1674 in exponential form is:
1674 = 21×33×311
Prime Factorization of 1680
2 | 1680 |
2 | 840 |
2 | 420 |
2 | 210 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 1680 are 2, 3, 5,7. Prime factorization of 1680 in exponential form is:
1680 = 24×31×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1674 and 1680.
LCM(1674,1680) = 24×33×51×71×311
LCM(1674,1680) = 468720
Factors of 1674
List of positive integer factors of 1674 that divides 1674 without a remainder.
1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674
Factors of 1680
List of positive integer factors of 1680 that divides 1680 without a remainder.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1674 and 1680, than apply into the LCM equation.
GCF(1674,1680) = 6
LCM(1674,1680) = ( 1674 × 1680) / 6
LCM(1674,1680) = 2812320 / 6
LCM(1674,1680) = 468720
(i) The LCM of 1680 and 1674 is associative
LCM of 1674 and 1680 = LCM of 1680 and 1674
1. What is the LCM of 1674 and 1680?
Answer: LCM of 1674 and 1680 is 468720.
2. What are the Factors of 1674?
Answer: Factors of 1674 are 1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674. There are 16 integers that are factors of 1674. The greatest factor of 1674 is 1674.
3. What are the Factors of 1680?
Answer: Factors of 1680 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680. There are 40 integers that are factors of 1680. The greatest factor of 1680 is 1680.
4. How to Find the LCM of 1674 and 1680?
Answer:
Least Common Multiple of 1674 and 1680 = 468720
Step 1: Find the prime factorization of 1674
1674 = 2 x 3 x 3 x 3 x 31
Step 2: Find the prime factorization of 1680
1680 = 2 x 2 x 2 x 2 x 3 x 5 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 = 468720 = 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 7 x 31
Step 4: Therefore, the least common multiple of 1674 and 1680 is 468720.