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 974 the smallest integer that is 473364 that is divisible by both numbers.
Least Common Multiple (LCM) of 972 and 974 is 473364.
LCM(972,974) = 473364
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 974. First we will calculate the prime factors of 972 and 974.
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 974
2 | 974 |
487 | 487 |
1 |
Prime factors of 974 are 2,487. Prime factorization of 974 in exponential form is:
974 = 21×4871
Now multiplying the highest exponent prime factors to calculate the LCM of 972 and 974.
LCM(972,974) = 22×35×4871
LCM(972,974) = 473364
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 974
List of positive integer factors of 974 that divides 974 without a remainder.
1, 2, 487, 974
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 972 and 974, than apply into the LCM equation.
GCF(972,974) = 2
LCM(972,974) = ( 972 × 974) / 2
LCM(972,974) = 946728 / 2
LCM(972,974) = 473364
(i) The LCM of 974 and 972 is associative
LCM of 972 and 974 = LCM of 974 and 972
1. What is the LCM of 972 and 974?
Answer: LCM of 972 and 974 is 473364.
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 974?
Answer: Factors of 974 are 1, 2, 487, 974. There are 4 integers that are factors of 974. The greatest factor of 974 is 974.
4. How to Find the LCM of 972 and 974?
Answer:
Least Common Multiple of 972 and 974 = 473364
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 974
974 = 2 x 487
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 473364 = 2 x 2 x 3 x 3 x 3 x 3 x 3 x 487
Step 4: Therefore, the least common multiple of 972 and 974 is 473364.