The greatest common factor (GCF) of 15, 30, 90 is 15.
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The GCF is 15.
Its 15
The Greatest Common Factor (GCF) of 45 and 30 is 15. The Least Common Multiple (LCM) of 45 and 30 is 90.
15 is the answer im trill
The GCF is 5.