The factors of 42 are:
1, 2, 3, 6, 7, 14, 21, 42
The factors of 189 are:
1, 3, 7, 9, 21, 27, 63, 189
The factors of 441 are:
1, 3, 7, 9, 21, 49, 63, 147, 441
The common factors are:
1, 3, 7, 21
The Greatest Common Factor:
GCF = 21
You need at least two numbers to find a GCF.
A single number cannot have a greatest common factor because "common" refers to factors that two or more numbers have in common. You have only one, which is 189.
The GCF is 63.
The GCF of 81 and 189 is 27.
GCF of 189 42 and 441 is 1.
It is: 63
1
63
GCF(189, 441, 63) = 21.
The GCF is: 63
The GCF is 1.
The GCF is 63.
The factors of 330 are:1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330The factors of 945 are:1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945The common factors are:1, 3, 5, 15The Greatest Common Factor (GCF) is:15
The GCF is 63.
The GCF is 63.
GCF(189, 441, 63) = 21.
The GCF of 189, 315, and 441 is: 63
The GCF is: 63
It is: 63
The GCF is 21.
The GCF is 1.
The Least Common Multiple of 189, 441, and 63 is 1323.
441 / 252 = 1 r 189 252 / 189 = 1 r 63 189 / 63 = 3 r 0 The hcf of 441 and 252 is 63
You need at least two numbers to find a GCF.
1,323