Oh, dude, the Greatest Common Factor (GCF) of 315 and 441 is 63. It's like the cool kid that shows up at both their parties and everyone's like, "Hey, it's 63, what's up?" So yeah, that's the number that can divide both 315 and 441 without any leftovers.
The GCF is 63.
315 = 32 x 5 x 7525 = 3 x 5 x 73 x 5 x 7 = 105 (GCF)
greatest common factor of 188 441 and 63 is 1.
GCF(189, 441, 63) = 21.
The GCF is: 63