The answer is eighteen (18) because:
2,4,6,8,10,12,14,16,18,
4,8,12,16,18
6,12,18
3,6,9,12,15,18
The factors of 6 are 1, 2, and 3. This means that any number with 6 as a factors also has 1, 2, and 3 as factors.
Factors are numbers you can multiply together to get the original number. 2 x 3 = 6 2 and 3 are factors of the composite number 6.
The factors of 2 are 1 and 2. The factors of 3 are 1 and 3. The only common factor is 1.
Proper factors of a number do not include 1 or the number itself. For example, all of the factors of 6 are 1, 2, 3, and 6, but the proper factors of 6 are 2 and 3.
A factor is a number you use to multiply to get a number Example 2 x 3 = 6 2 and 3 are the factors Factors of 6: 1, 2, 3, 6
3 is a prime number. A prime number is a product that only has 2 factors; 1 and itself. So the factors of 3 are 1,3.
The prime factors of 78 are 2, 3, and 13. To find the prime factors of a number, you can start by dividing the number by the smallest prime number, which is 2. If the number is divisible by 2, continue dividing by 2 until you reach a point where it is no longer divisible by 2. Then, move on to the next prime number, which is 3. Repeat the process until you have factored the number completely into its prime factors.
Since 3 is prime, the factors are 1 and 3.
Three is prime, because the number 3 only has 2 factors 1 and itself and the number 4 has 3 factors 1,2, and 4 (you can tell if a number is prime when it has 2 factors and if a number has more than 2 it is composite)
If all the factors are included, the largest number of the set is the composite number for which they are all factors. 1, 3, 5, and 10. The first set would be the set of factors of 10, which are 1, 2, 5, and 10, but this does not match the given numbers, so it is not the one. 1, 4, 7 and 28. The second set would be the set of factors of 28, which are 1, 2, 4, 7, 14, and 28, but this does not match the given numbers, so it is not the one. 1 and 23. The third set represents the factors of a prime number, which does not match the condition of it being a composite number, so it is not the one. 1, 2, 4, 5, 10, and 20. The fourth set represents the factors of 20, which are 1, 2, 4, 5, 10, and 20 - a match for the given numbers, so it is the one that fits the condition.
2 and 3 are prime numbers. If they are factors of a given number, they are prime factors.
number factors for :12=2*2*318=2*3*326=2*13