Table of Contents
What are the prime factors of 24 and 42?
Prime factorization of 24 and 42 is (2 × 2 × 2 × 3) and (2 × 3 × 7) respectively. As visible, 24 and 42 have common prime factors. Hence, the GCF of 24 and 42 is 2 × 3 = 6.
What are the prime factors of 24 and 40?
GCF of 24 and 40 by Prime Factorization Prime factorization of 24 and 40 is (2 × 2 × 2 × 3) and (2 × 2 × 2 × 5) respectively. As visible, 24 and 40 have common prime factors. Hence, the GCF of 24 and 40 is 2 × 2 × 2 = 8.
What are the prime factors from 21 to 40?
Prime factorization of 21 and 40 is (3 × 7) and (2 × 2 × 2 × 5) respectively. As visible, there are no common prime factors between 21 and 40, i.e. they are co-prime. Hence, the GCF of 21 and 40 will be 1.
What is the greatest common factor of 24 and 44?
4
The GCF of 24 and 44 is 4. To calculate the greatest common factor (GCF) of 24 and 44, we need to factor each number (factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24; factors of 44 = 1, 2, 4, 11, 22, 44) and choose the greatest factor that exactly divides both 24 and 44, i.e., 4.
What is the GCF of 20 24 and 40?
Answer: The common factors for 20,24,40 20 , 24 , 40 are 1,2,4 1 , 2 , 4 . The GCF (HCF) of the numerical factors 1,2,4 1 , 2 , 4 is 4 .
Whats the LCM of 24 and 40?
120
What is the LCM of 24 and 40? Answer: LCM of 24 and 40 is 120.
What is the LCM of 21 and 40?
What is the LCM of 21 and 40? The LCM of 21 and 40 is 840.
How many factors does a prime number have?
The table below lists the factors for 3, 18, 36 and 48. It is important to note that every integer number has at least two factors: 1 and the number itself. If a number has only two factors that number is a prime number. This factors calculator factors numbers by trial division.
Are there any numbers with no prime factor above 3?
A regular number (number whose reciprocal is terminating dozenal) has no prime factor above 3 (so it is 3-smooth). The first: 1, 2, 3, 4, 6, 8, 9, 10, 14, 16, 20, 23. A k – powersmooth number has all pm ≤ k where p is a prime factor with multiplicity m.
Which is an even number with the prime factor 2?
An even number has the prime factor 2. The first: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 (sequence A005843 in the OEIS). An odd number does not have the prime factor 2. The first: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23 (sequence A005408 in the OEIS).
Is the product of 41 a prime number?
Since 41 is a prime number, this concludes the trial division. Thus: The products can also be written as: This is essentially the “brute force” method for determining the prime factors of a number, and though 820 is a simple example, it can get far more tedious very quickly.