5
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The GCF is 5.
the GCF is 15
The gcf of 45 and 60 is 15
The Greatest Common Factor (GCF) of 45 and 75 is 15. To find the GCF, you can list the factors of each number and find the largest number that both 45 and 75 share. The factors of 45 are 1, 3, 5, 9, 15, and 45, while the factors of 75 are 1, 3, 5, 15, 25, and 75. The largest number that both 45 and 75 share is 15, making it the Greatest Common Factor.
15, 30 and 45 have a GCF of 15.