Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 972 and 977 the smallest integer that is 949644 that is divisible by both numbers.
Least Common Multiple (LCM) of 972 and 977 is 949644.
LCM(972,977) = 949644
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 972 and 977. First we will calculate the prime factors of 972 and 977.
Prime Factorization of 972
2 | 972 |
2 | 486 |
3 | 243 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 972 are 2,3. Prime factorization of 972 in exponential form is:
972 = 22×35
Prime Factorization of 977
977 | 977 |
1 |
Prime factors of 977 are 977. Prime factorization of 977 in exponential form is:
977 = 9771
Now multiplying the highest exponent prime factors to calculate the LCM of 972 and 977.
LCM(972,977) = 22×35×9771
LCM(972,977) = 949644
Factors of 972
List of positive integer factors of 972 that divides 972 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
Factors of 977
List of positive integer factors of 977 that divides 977 without a remainder.
1, 977
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 972 and 977, than apply into the LCM equation.
GCF(972,977) = 1
LCM(972,977) = ( 972 × 977) / 1
LCM(972,977) = 949644 / 1
LCM(972,977) = 949644
(i) The LCM of 977 and 972 is associative
LCM of 972 and 977 = LCM of 977 and 972
1. What is the LCM of 972 and 977?
Answer: LCM of 972 and 977 is 949644.
2. What are the Factors of 972?
Answer: Factors of 972 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972. There are 18 integers that are factors of 972. The greatest factor of 972 is 972.
3. What are the Factors of 977?
Answer: Factors of 977 are 1, 977. There are 2 integers that are factors of 977. The greatest factor of 977 is 977.
4. How to Find the LCM of 972 and 977?
Answer:
Least Common Multiple of 972 and 977 = 949644
Step 1: Find the prime factorization of 972
972 = 2 x 2 x 3 x 3 x 3 x 3 x 3
Step 2: Find the prime factorization of 977
977 = 977
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 949644 = 2 x 2 x 3 x 3 x 3 x 3 x 3 x 977
Step 4: Therefore, the least common multiple of 972 and 977 is 949644.