Just 1.
The GCF of 40 and 63 is 1 (one).
40 and 63 have no common prime factors.
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Just 1.
The greatest prime factor of 40 is 5. The greatest prime factor of 63 is 7. They do not have any prime factors in common.
The greatest common factor of 40 and 63 is 1.
Common factors of 10 and 63 are: 1.
The Least Common Multiple (LCM) for 40 63 is 2,520.
The common factors of 28 and 63 are: 1 and 7
The common factors of 30 and 63 are 1 and 3.
The common factors of 15 and 63 are: 1 and 3
The common factors of 63 and 91 are 1 and 7.