Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1960 and 1968 the smallest integer that is 482160 that is divisible by both numbers.
Least Common Multiple (LCM) of 1960 and 1968 is 482160.
LCM(1960,1968) = 482160
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 1960 and 1968. First we will calculate the prime factors of 1960 and 1968.
Prime Factorization of 1960
2 | 1960 |
2 | 980 |
2 | 490 |
5 | 245 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 1960 are 2, 5,7. Prime factorization of 1960 in exponential form is:
1960 = 23×51×72
Prime Factorization of 1968
2 | 1968 |
2 | 984 |
2 | 492 |
2 | 246 |
3 | 123 |
41 | 41 |
1 |
Prime factors of 1968 are 2, 3,41. Prime factorization of 1968 in exponential form is:
1968 = 24×31×411
Now multiplying the highest exponent prime factors to calculate the LCM of 1960 and 1968.
LCM(1960,1968) = 24×31×51×72×411
LCM(1960,1968) = 482160
Factors of 1960
List of positive integer factors of 1960 that divides 1960 without a remainder.
1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960
Factors of 1968
List of positive integer factors of 1968 that divides 1968 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1960 and 1968, than apply into the LCM equation.
GCF(1960,1968) = 8
LCM(1960,1968) = ( 1960 × 1968) / 8
LCM(1960,1968) = 3857280 / 8
LCM(1960,1968) = 482160
(i) The LCM of 1968 and 1960 is associative
LCM of 1960 and 1968 = LCM of 1968 and 1960
1. What is the LCM of 1960 and 1968?
Answer: LCM of 1960 and 1968 is 482160.
2. What are the Factors of 1960?
Answer: Factors of 1960 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960. There are 24 integers that are factors of 1960. The greatest factor of 1960 is 1960.
3. What are the Factors of 1968?
Answer: Factors of 1968 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968. There are 20 integers that are factors of 1968. The greatest factor of 1968 is 1968.
4. How to Find the LCM of 1960 and 1968?
Answer:
Least Common Multiple of 1960 and 1968 = 482160
Step 1: Find the prime factorization of 1960
1960 = 2 x 2 x 2 x 5 x 7 x 7
Step 2: Find the prime factorization of 1968
1968 = 2 x 2 x 2 x 2 x 3 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 482160 = 2 x 2 x 2 x 2 x 3 x 5 x 7 x 7 x 41
Step 4: Therefore, the least common multiple of 1960 and 1968 is 482160.