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The GCF of 18 and 45 is 9.
The prime factors of 18 are 2, 3 and 3
The prime factors of 45 are 3, 3 and 5
Only the two 3s are common to both numbers, so the highest common factor will be 3 x 3 = 9
It is 9
The GCF of 18 and 45 is 9. The common factors of both numbers are 1, 4, and 9.
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Related Questions
What is the greatest common divisor of 18 and 45?
The Greatest Common Divisor of 18, 45 is 9.
What is the greatest common divisor of 18 45 72?
The Greatest Common Divisor of 18, 45, 72 is 9.
What is the greatest common factor of 18 45 and 54?
9 is the greatest common factor of 18, 45 and 54.
What is the greatest common factor of 45 85 63 and 18?
The Greatest Common Factor of 45, 85, 63 and 18 is 1.
What is the greatest common factor of 18 30 45?
The GCF is 3.
What is the GCF of 18 45 and 144?
The Greatest Common Factor (GCF) of 144, 45, and 18 is 9.
What are the greatest common factors of 18 and 45?
The Greatest Common Factor (GCF) is: 9
What is the common factor of 18 and 45?
The greatest common factor of 18 and 45 is 9.
What are the Greatest common factor and Least common multiple of 18 and 45?
The LCM of 18 and 45 is 90, and their GCF is 9.
What is the greatest common devisor of 18 and 45?
9
What is greatest common factor 45 and 18?
The GCF is 9.
What is the greatest common divisor of 18-45-72?
nine
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