Any multiple of 105.
The GCF is 3.
In each of those cases, the only composite factor of the number is the number itself.
14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.
The Greatest Common Factor of 15, 21, 28: 1
If 21 is a multiple of the number, the number cannot have 90 as a factor.
Answer: 3Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 21 are 1, 3, 7, and 21.The factors of 27 are 1, 3, 9, and 27.The common factors are 1 and 3. Therefore, the greatest common factor is 3.
Yes, 15 is a factor of 15. Every number has itself and 1 as a factor.
The only composite factor of 21 is 21.
Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.
Oh honey, the Highest Common Factor of 15 and 21 is 3. It's like finding the common ground between two divas - you gotta go with the biggest number that can divide them both without any drama. So, in this case, 3 is the lucky winner.
Yes - 315/15 = 21.
No 21 is not a factor of 24. In order for a number to be a factor of another number, x number times n number must equal the number you are trying to factor. Below is a self made image that explains factoring and shows you how to factor 24.