Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4974 and 4978 the smallest integer that is 12380286 that is divisible by both numbers.
Least Common Multiple (LCM) of 4974 and 4978 is 12380286.
LCM(4974,4978) = 12380286
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 4974 and 4978. First we will calculate the prime factors of 4974 and 4978.
Prime Factorization of 4974
2 | 4974 |
3 | 2487 |
829 | 829 |
1 |
Prime factors of 4974 are 2, 3,829. Prime factorization of 4974 in exponential form is:
4974 = 21×31×8291
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 4974 and 4978.
LCM(4974,4978) = 21×31×191×1311×8291
LCM(4974,4978) = 12380286
Factors of 4974
List of positive integer factors of 4974 that divides 4974 without a remainder.
1, 2, 3, 6, 829, 1658, 2487, 4974
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 4974 and 4978, than apply into the LCM equation.
GCF(4974,4978) = 2
LCM(4974,4978) = ( 4974 × 4978) / 2
LCM(4974,4978) = 24760572 / 2
LCM(4974,4978) = 12380286
(i) The LCM of 4978 and 4974 is associative
LCM of 4974 and 4978 = LCM of 4978 and 4974
1. What is the LCM of 4974 and 4978?
Answer: LCM of 4974 and 4978 is 12380286.
2. What are the Factors of 4974?
Answer: Factors of 4974 are 1, 2, 3, 6, 829, 1658, 2487, 4974. There are 8 integers that are factors of 4974. The greatest factor of 4974 is 4974.
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 4974 and 4978?
Answer:
Least Common Multiple of 4974 and 4978 = 12380286
Step 1: Find the prime factorization of 4974
4974 = 2 x 3 x 829
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 = 12380286 = 2 x 3 x 19 x 131 x 829
Step 4: Therefore, the least common multiple of 4974 and 4978 is 12380286.