1 is the only common factor of 30 and 73.
Chat with our AI personalities
14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.
Only the number 1.
30/21 = 1 with a remainder of 9
33
To find what the factors of a number are you can list the factor pairs: 1 x 21 3 x 7 The factors of 21 are 1, 3, 7, and 21.