Factors of 150: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150.
Factors of 275: 1, 5, 11, 25, 55, 275.
Factors of 420: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420.
GCF (150, 275, 420) = 5
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Greatest common factor of 198 and 275 is 11.
The greatest common factor of 525, 375, and 275 is 25. The greatest common factor is the largest number that can be divided into a list of numbers evenly.
"Greatest common factor" and "least common multiple" only give useful information for more than one number. The greatest common factor of any number would be the same number - in this case, 275.
Prime factorization of 275 = 52 x 11 Prime factorization of 1000 = 23 x 53 gcf(275, 1000) = 52 = 25.
The same as the highest common factor of 275 and 100 (where 100 is the remainder of the division of 375 by 275).