GCF(14, 28, 21) = 7
The GCF is 7.
GCF(28, 21) = 7 Steps: Prime factorization of the numbers: 28 = 2 × 2 × 7 21 = 3 × 7 GCF(28, 21) = 7
The GCF is 7.
The GCF is 7.
The GCF is 7.
The GCF is 7.
The GCF is 7.
It is: 7
The GCF is 7.
The GCF is 7.
The factors of 21 are 1 x 3 x 7 x 21.The factors of 28 are 1 x 2 x 4 x 7 x 14 x 28.The GCF of 21 and 28 is 7.