Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1666 and 1672 the smallest integer that is 1392776 that is divisible by both numbers.
Least Common Multiple (LCM) of 1666 and 1672 is 1392776.
LCM(1666,1672) = 1392776
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 1666 and 1672. First we will calculate the prime factors of 1666 and 1672.
Prime Factorization of 1666
2 | 1666 |
7 | 833 |
7 | 119 |
17 | 17 |
1 |
Prime factors of 1666 are 2, 7,17. Prime factorization of 1666 in exponential form is:
1666 = 21×72×171
Prime Factorization of 1672
2 | 1672 |
2 | 836 |
2 | 418 |
11 | 209 |
19 | 19 |
1 |
Prime factors of 1672 are 2, 11,19. Prime factorization of 1672 in exponential form is:
1672 = 23×111×191
Now multiplying the highest exponent prime factors to calculate the LCM of 1666 and 1672.
LCM(1666,1672) = 23×72×111×171×191
LCM(1666,1672) = 1392776
Factors of 1666
List of positive integer factors of 1666 that divides 1666 without a remainder.
1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666
Factors of 1672
List of positive integer factors of 1672 that divides 1672 without a remainder.
1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1666 and 1672, than apply into the LCM equation.
GCF(1666,1672) = 2
LCM(1666,1672) = ( 1666 × 1672) / 2
LCM(1666,1672) = 2785552 / 2
LCM(1666,1672) = 1392776
(i) The LCM of 1672 and 1666 is associative
LCM of 1666 and 1672 = LCM of 1672 and 1666
1. What is the LCM of 1666 and 1672?
Answer: LCM of 1666 and 1672 is 1392776.
2. What are the Factors of 1666?
Answer: Factors of 1666 are 1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666. There are 12 integers that are factors of 1666. The greatest factor of 1666 is 1666.
3. What are the Factors of 1672?
Answer: Factors of 1672 are 1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672. There are 16 integers that are factors of 1672. The greatest factor of 1672 is 1672.
4. How to Find the LCM of 1666 and 1672?
Answer:
Least Common Multiple of 1666 and 1672 = 1392776
Step 1: Find the prime factorization of 1666
1666 = 2 x 7 x 7 x 17
Step 2: Find the prime factorization of 1672
1672 = 2 x 2 x 2 x 11 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1392776 = 2 x 2 x 2 x 7 x 7 x 11 x 17 x 19
Step 4: Therefore, the least common multiple of 1666 and 1672 is 1392776.