Prime factorizations are unique. No other number will have exactly the same number of prime factors as 28. Multiples of 14 will have some of the same factors.
20 and 28 both have six factors.
No since it is an even number it has 2 as a factor. If the factors are the number itself and 1 it is prime. If there are more factors it is not. 28 has many more factors.28=22 x7So 2 and 4 and 7 are all factors as is 14.
28 is a composite number because it has factors of 2 and 7.
A perfect number is a number that is the sum of all its proper factors (that is all its factors excluding itself). The next perfect number after 28 is 496
Prime factorizations are unique. No other number will have exactly the same number of prime factors as 28. Multiples of 14 will have some of the same factors.
20 and 28 both have six factors.
20 and 28 both have six factors.
The factors of 28 are 1,2,4,7,14 and 28. "Common" means "same for both". For these factors to be common, they need to be compared to the factors of another number.
No since it is an even number it has 2 as a factor. If the factors are the number itself and 1 it is prime. If there are more factors it is not. 28 has many more factors.28=22 x7So 2 and 4 and 7 are all factors as is 14.
28 is composite. Its factors are 1, 2, 4, 7, 14 and 28. Since it has factors other than 1 and itself, it is not prime - it is composite.Its prime factors are 2×2×7.28 is an even number greater than 2. It is a composite number.28 is composite.
No
7*4 A number which can go into a number is called a factor. factors of 28 = 1, 2, 4, 7, 14, 28 to find the factors of a certain number, divide this number by numbers from 1 to whatever the number is, and if the answer is an integer (whole number), it is a factor, e.g. 28: 28 divided by 4=7 therefore, both 4 and 7 are factors of 28 28 divided by 14=2 therefore 14 and 2 are factors of 28 28 divided by 28=1 therefore 28 and 1 are factors of 28 therefore, factors of 28 are 1, 28, 2, 14, 4, 7
First of all, to know if a number is abundant, deficient, or perfect, you need to know all the factors of your given number. The factors of 28 are 1,2,4,7,14, and 28. Add your proper factors -or the factors except itself- and determine if the sum of the proper factors is below (deficient), above (abundant), or the exact same amount (perfect). In this case, if you add the proper factors, it equals exactly 28. Because it is exact, it is perfect! =)
The factors of 28 are: 1, 2, 4, 7, 14, 28.
24
Because it has more than two factors. All even numbers, besides the number 2, are composite.