What are the multiples of 12 and 42?
To calculate the LCM of 12 and 42 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 12 (12, 24, 36, 48, 60, 72, . . . ) and 42 (42, 84, 126, 168, . . . . )
- Step 2: The common multiples from the multiples of 12 and 42 are 84, 168, . . .
What are all the GCF of 42?
Solution: The greatest number that divides 42 and 63 exactly is their greatest common factor, i.e. GCF of 42 and 63. Factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42. Factors of 63 = 1, 3, 7, 9, 21, 63.
What is the GCF of 12 and 40?
4
The GCF of 12 and 40 is 4. To calculate the greatest common factor of 12 and 40, we need to factor each number (factors of 12 = 1, 2, 3, 4, 6, 12; factors of 40 = 1, 2, 4, 5, 8, 10, 20, 40) and choose the greatest factor that exactly divides both 12 and 40, i.e., 4.
What is GCF of and 12?
The GCF of 12 and 12 is 12.
What is the least common multiple of 8 12 and 42?
168
Calculate the LCM The least common multiple of 8, 12 and 42 is 168.
What are the factors of 42?
Factors of 42
- Factors of 42: 1, 2, 3, 6, 7, 14, 21, and 42.
- Factors of -42: -1, -2, -3, -6, -7, -14, -21 and -42.
- Prime Factorization of 42: 42 = 2 × 3 × 7.
What is the LCM of 42?
To find the LCM of 42 and 54 using prime factorization, we will find the prime factors, (42 = 2 × 3 × 7) and (54 = 2 × 3 × 3 × 3). LCM of 42 and 54 is the product of prime factors raised to their respective highest exponent among the numbers 42 and 54. ⇒ LCM of 42, 54 = 21 × 33 × 71 = 378.
What is the greatest common factor of 12 40 and 45?
1
Calculate the GCF The greatest common factor of 12, 40 and 45 is 1.
What is the greatest common factor for 40?
Factors of 40 are numbers that, when multiplied in pairs give the product as 40. There are 8 factors of 40, which are 1, 2, 4, 5, 8, 10, 20 and 40. Here, 40 is the biggest factor. The Prime Factors and Pair Factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40 and (1, 40), (2, 20), (4, 10) and (5, 8) respectively.
What is the GCF of 40?
The GCF of 40 and 48 is 8. To calculate the GCF (Greatest Common Factor) of 40 and 48, we need to factor each number (factors of 40 = 1, 2, 4, 5, 8, 10, 20, 40; factors of 48 = 1, 2, 3, 4, 6, 8, 12, 16, 24, 48) and choose the greatest factor that exactly divides both 40 and 48, i.e., 8.
What are the factors of 40?
Factors of 40
- Factors of 40: 1, 2, 4, 5, 8, 10, 20 and 40.
- Negative Factors of 40: -1, -2, -4, -5, -8, -10, -20 and -40.
- Prime Factors of 40: 2, 5.
- Prime Factorization of 40: 2 × 2 × 2 × 5 = 23 × 5.
- Sum of Factors of 40: 90.