Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 670 and 672 the smallest integer that is 225120 that is divisible by both numbers.
Least Common Multiple (LCM) of 670 and 672 is 225120.
LCM(670,672) = 225120
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 670 and 672. First we will calculate the prime factors of 670 and 672.
Prime Factorization of 670
2 | 670 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 670 are 2, 5,67. Prime factorization of 670 in exponential form is:
670 = 21×51×671
Prime Factorization of 672
2 | 672 |
2 | 336 |
2 | 168 |
2 | 84 |
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 672 are 2, 3,7. Prime factorization of 672 in exponential form is:
672 = 25×31×71
Now multiplying the highest exponent prime factors to calculate the LCM of 670 and 672.
LCM(670,672) = 25×31×51×71×671
LCM(670,672) = 225120
Factors of 670
List of positive integer factors of 670 that divides 670 without a remainder.
1, 2, 5, 10, 67, 134, 335, 670
Factors of 672
List of positive integer factors of 672 that divides 672 without a remainder.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 670 and 672, than apply into the LCM equation.
GCF(670,672) = 2
LCM(670,672) = ( 670 × 672) / 2
LCM(670,672) = 450240 / 2
LCM(670,672) = 225120
(i) The LCM of 672 and 670 is associative
LCM of 670 and 672 = LCM of 672 and 670
1. What is the LCM of 670 and 672?
Answer: LCM of 670 and 672 is 225120.
2. What are the Factors of 670?
Answer: Factors of 670 are 1, 2, 5, 10, 67, 134, 335, 670. There are 8 integers that are factors of 670. The greatest factor of 670 is 670.
3. What are the Factors of 672?
Answer: Factors of 672 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672. There are 24 integers that are factors of 672. The greatest factor of 672 is 672.
4. How to Find the LCM of 670 and 672?
Answer:
Least Common Multiple of 670 and 672 = 225120
Step 1: Find the prime factorization of 670
670 = 2 x 5 x 67
Step 2: Find the prime factorization of 672
672 = 2 x 2 x 2 x 2 x 2 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 225120 = 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 67
Step 4: Therefore, the least common multiple of 670 and 672 is 225120.