Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4972 and 4978 the smallest integer that is 12375308 that is divisible by both numbers.
Least Common Multiple (LCM) of 4972 and 4978 is 12375308.
LCM(4972,4978) = 12375308
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 4972 and 4978. First we will calculate the prime factors of 4972 and 4978.
Prime Factorization of 4972
2 | 4972 |
2 | 2486 |
11 | 1243 |
113 | 113 |
1 |
Prime factors of 4972 are 2, 11,113. Prime factorization of 4972 in exponential form is:
4972 = 22×111×1131
Prime Factorization of 4978
2 | 4978 |
19 | 2489 |
131 | 131 |
1 |
Prime factors of 4978 are 2, 19,131. Prime factorization of 4978 in exponential form is:
4978 = 21×191×1311
Now multiplying the highest exponent prime factors to calculate the LCM of 4972 and 4978.
LCM(4972,4978) = 22×111×191×1131×1311
LCM(4972,4978) = 12375308
Factors of 4972
List of positive integer factors of 4972 that divides 4972 without a remainder.
1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4972
Factors of 4978
List of positive integer factors of 4978 that divides 4978 without a remainder.
1, 2, 19, 38, 131, 262, 2489, 4978
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4972 and 4978, than apply into the LCM equation.
GCF(4972,4978) = 2
LCM(4972,4978) = ( 4972 × 4978) / 2
LCM(4972,4978) = 24750616 / 2
LCM(4972,4978) = 12375308
(i) The LCM of 4978 and 4972 is associative
LCM of 4972 and 4978 = LCM of 4978 and 4972
1. What is the LCM of 4972 and 4978?
Answer: LCM of 4972 and 4978 is 12375308.
2. What are the Factors of 4972?
Answer: Factors of 4972 are 1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4972. There are 12 integers that are factors of 4972. The greatest factor of 4972 is 4972.
3. What are the Factors of 4978?
Answer: Factors of 4978 are 1, 2, 19, 38, 131, 262, 2489, 4978. There are 8 integers that are factors of 4978. The greatest factor of 4978 is 4978.
4. How to Find the LCM of 4972 and 4978?
Answer:
Least Common Multiple of 4972 and 4978 = 12375308
Step 1: Find the prime factorization of 4972
4972 = 2 x 2 x 11 x 113
Step 2: Find the prime factorization of 4978
4978 = 2 x 19 x 131
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 12375308 = 2 x 2 x 11 x 19 x 113 x 131
Step 4: Therefore, the least common multiple of 4972 and 4978 is 12375308.