91 has more than 2 factors. It is composite.
It has more than three factors which are: 1 2 3 4 6 9 12 18 and 36
144 has 15 factors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144.
The factors of 18 are: 1 2 3 6 9 18 The prime factors are: 2 x 3 x 3
The Greatest Common Factor depends upon the numbers for which there are common factors and it is the greatest one of them; it can be greater than 18, for example the greatest common factor of 40 and 100 is 20. The greatest common factor must be one of the factors of each of the numbers. As the factors of each number cannot be greater than that number, the greatest common factor of a set of numbers cannot be greater than the least number. If this number is not greater than 18 then the greatest common factor of the numbers cannot be greater than 18. Even if the least number is greater than 18 it is possible that the greatest common factor of a set of numbers is still not greater than 18, for example the greatest common factor of 20, 30 and 50 is 10.
A number which has more than two factors is called composite number. Factors of 18 are 1, 2, 3, 6, 9 and 18. As it can be seen 18 has more than two factors so, 18 is composite.
factorise it and get your answer- 30=2*3*5 18=2*3*3 same number of factors
2 x 9 = 18, so 18 has more factors than 1 and itself. It cannot be prime because a prime number has two factors: 1 and itself.
Any number with more than 2 factors is composite.12 has six factors, so it's composite.18 also has six factors, so it's composite too.(Only 4 of the factors of 8 are the same as 4 of the factors of 12)
18 = 2*3*3 So composite factors of 18 are: 2*3 = 6 3*3 = 9 and 2*3*3 = 18 These are all the factors of 18 other than 1 and its prime factors (2 and 3)
ways to multiply 90 more than 2 factors
91 has more than 2 factors. It is composite.
No a prime number has only 2 factors which are itself and one but a composite number has more than 2 factors
Factors of 2 : 1, 2 Factors of 18 : 1, 2, 3, 6, 9, 18
A whole number with more than 2 factors is a composite number.
An Abundant Number is one that the factors (other than itself) add up to more than the number. 18 factors into [2 3 3] so the factor list is {1 2 3 6 9 18} and the sum of the rest is 21. Since 21 is greater than 18, it is an abundant number.Yes 18 is an abundant number because if you add all of it's factors (1,2,3,6,9,) together the sum is 21.Definition of Abundant- a number that is less the sum of it's factors or integers
12 (factors: 1, 2, 3, 4, 6, 12) and 18 (factors: 1, 2, 3, 6, 9, 18)