The factors of 43 are 1 and 43. For them to be common, they need to be compared to another set of factors.
Common factors of 10 and 63 are: 1.
33 has the factors ,3, & '11' ; it is composite 43 has no factors ; it is a prime number 63 has the factors 3,7,9,21 ; it is composite.
The common factors of 30 and 63 are 1 and 3.
The common factors of 28 and 63 are: 1 and 7
The common factors of 63 and 91 are 1 and 7.
The common factors of 15 and 63 are: 1 and 3
The common factors of 21 and 63 are 1, 3, 7, and 21
The factors of 43 are 1 and 43. For them to be common, they need to be compared to another set of factors.
43 is a prime number so the common factors of 43 and 42 are 1
The common factors of 54 and 63 are: 1, 3, and 9
The common factors of 63 and 56 are: 1, 7