Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 63 and 74 the smallest integer that is 4662 that is divisible by both numbers.
Least Common Multiple (LCM) of 63 and 74 is 4662.
LCM(63,74) = 4662
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 63 and 74. First we will calculate the prime factors of 63 and 74.
Prime Factorization of 63
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 63 are 3,7. Prime factorization of 63 in exponential form is:
63 = 32×71
Prime Factorization of 74
2 | 74 |
37 | 37 |
1 |
Prime factors of 74 are 2,37. Prime factorization of 74 in exponential form is:
74 = 21×371
Now multiplying the highest exponent prime factors to calculate the LCM of 63 and 74.
LCM(63,74) = 21×32×71×371
LCM(63,74) = 4662
Factors of 63
List of positive integer factors of 63 that divides 63 without a remainder.
1, 3, 7, 9, 21, 63
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1, 2, 37, 74
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63 and 74, than apply into the LCM equation.
GCF(63,74) = 1
LCM(63,74) = ( 63 × 74) / 1
LCM(63,74) = 4662 / 1
LCM(63,74) = 4662
(i) The LCM of 74 and 63 is associative
LCM of 63 and 74 = LCM of 74 and 63
1. What is the LCM of 63 and 74?
Answer: LCM of 63 and 74 is 4662.
2. What are the Factors of 63?
Answer: Factors of 63 are 1, 3, 7, 9, 21, 63. There are 6 integers that are factors of 63. The greatest factor of 63 is 63.
3. What are the Factors of 74?
Answer: Factors of 74 are 1, 2, 37, 74. There are 4 integers that are factors of 74. The greatest factor of 74 is 74.
4. How to Find the LCM of 63 and 74?
Answer:
Least Common Multiple of 63 and 74 = 4662
Step 1: Find the prime factorization of 63
63 = 3 x 3 x 7
Step 2: Find the prime factorization of 74
74 = 2 x 37
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4662 = 2 x 3 x 3 x 7 x 37
Step 4: Therefore, the least common multiple of 63 and 74 is 4662.