Answer:
HCF = 63
Step-by-step explanation:
The factors of 252 are: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252
.
The factors of 378 are: 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
.
The factors of 567 are: 1, 3, 7, 9, 21, 27, 63, 81, 189, 567
.
Then the greatest common factor is 63.
