21 - 1, 3, 7, 21
22 - 1, 2, 11, 22
21 and 22 share no common factors aside from 1.
Factors of 21: 1, 3, 7 and 21 Factors of 22: 1, 2, 11 and 22 Factors of 23: 1 and 23 Note that: 2, 3, 7, 11 and 23 are prime numbers
The factors of 21 are: 1, 3, 7, 21 The factors of 66 are: 1, 2, 3, 6, 11, 22, 33, 66
-21 and -1
The factors of 21 are: 1, 3, 7, 21 The factors of 22 are: 1, 2, 11, 22 The factors of 23 are: 1, 23 The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24 The factors of 2122 are: 1, 2, 1061, 2122
20, 21, 22
Oh, dude, factors are like the friends that multiply together to give you the number you're looking for. So, for 21, you've got 1, 3, 7, and 21 hanging out together. Then, for 30, you've got 1, 2, 3, 5, 6, 10, 15, and 30 chilling. And finally, for 44, you've got 1, 2, 4, 11, 22, and 44 just doing their factor thing.
1, 2, 11, 22 1, 2, 3, 6, 7, 14, 21, 42
20 + [(21+23)/22]2 = 20 + [44/22]2 = 20 + 22 = 20 + 4 = 24
Factors of 21: 1, 3, 7, 21.Factors of 308: 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308.GCF (21, 308) = 7
The factors of 22 are: 1, 2, 11, 22 The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24 The common factors are: 1, 2 The Greatest Common Factor: 2
21 over 66 is 21/66, and to simplify you must find to common factors of the two numbers ( the denominator and the numerator). a common one in this case is 3. 66 divided by 3= 22 and 21 divided by 3=7So the answer is 7/22 (7 over 22)