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The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself. Prime factorisation is irrelevant in finding the GCF of a single number.

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Wiki User

7y ago
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Wiki User

7y ago

3 x 3 x 3 x 7 = 189

2 x 2 x 2 x 5 x 5 = 200

No common prime factors; the GCF is 1.

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Wiki User

7y ago

189

2 x 2 x 2 x 5 x 5 = 200

No prime factors in common, the GCF is 1.

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Teresa Arnett

Lvl 2
2y ago

3 x 3 x 3 x 7 = 189 2 x 2 x 2 x 5 x 5 = 200 No common prime factors; the GCF is 1.

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Q: What is the GCF of 189 and 200 using prime factorizations.?
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