What is the greatest common factor of 81 and 42?

Anonymous

∙ 13y ago

The GCF of 42 and 81 is 3.

The prime factorization of 42 is 2*3*7

The prime factorization of 81 is 3*3*3*3

Their only and greatest common factor is 3.

Wiki User

∙ 9y ago

What else can I help you with?

What is the gcf of 42 90and 81?

The greatest common factor of the numbers 42, 90 and 81 is 3.

What is the greatest common factor of 42 21 and 81?

The GCF is 3.

What is the greatest common factor of 42 76 and 81?

The GCF is 1.

What is the greatest common factor of 81 and 243 42?

The GCF is 3.

What is the greatest common factor of 42 and90 and 81?

The GCF is 3.

What is the greatest common factor of 81 42 75 and 27?

The GCF is 3.

What is the greatest common factor of 42 90 81?

The GCF is 3.

What is the greatest common factor of 52 and 81?

The greatest common factor of 52 and 81 is 1

What is the greatest common factor and least common multiple of 42 81 105?

They are 3 and 2835 respectively

What is greatest common factor of 56 and 81?

The greatest common factor of 56 and 81 is 1.

What is the greatest common factor of 81 and 189?

The greatest common factor of 81 and 189 is 27.

What is the Greatest Common Factor of 40 and 81?

The greatest common factor of 40 , 81 = 1

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