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Greatest common factor of two numbers x and y(x>y) is always less than or equal to y.
So, we will write down only those factors of 800 which are less than or equal to 45.
Factors of 45: 1, 3, 5, 9, 15 and 45.
Factors of 800: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40...
So, Greatest common factor is 5.
Alternate Method:
Method of prime factorization:
45 = 3x3x5
800 = 2x2x2x2x2x5x5
It is clear that 5 is the only number which divides both 45 and 800.
So, gcf of 45 and 800 is 5.
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What is the highest common factor of 45 and 80?
The greatest common factor of 45 and 320 is 5.
What is the GCF of 100 and 45?
The GCF is: 5
What is the greatest common factor of 3 and 45?
The GCF of 3 and 45 is 3.Since 3 is a factor of 45, it is automatically the GCF.
What is the gcf of 125 80 and 225?
GCF(125, 80, 225) = 5
What is the GCF of 180 and 405?
The greatest common factor of the numbers 180 and 150 is 30.
What is the GCF of 45 and 80?
the GCF or greatest common factor of 45, and 80 is 5
What is the gcf for 45 and 80?
The GCF is 5.
What is the highest common factor of 45 and 80?
The greatest common factor of 45 and 320 is 5.
What is the greatest common factor of 80 and 45?
The GCF of 45 and 80 is 5. Prime factors: 45 = 5x3x3 80 = 5x2x2x2x2 the only prime factor in both is 5, and so the highest common factor is 5. Alternative method: 80 mod 45 = 35 45 mod 35 = 10 35 mod 10 = 5 10 mod 5 = 0 so HCF = 5.
How do you find the greatest common factor of 45 and 80?
The greatest common factor (GCF) is 5.
What is the gcf of 135 225 and 45?
The GCF is 45.
What is the gcf of 80 and 400?
The GCF is 80.
What is the GCF of 45 and 50?
The GCF of 45 and 50 is 5.The GCF is 5.
What is the GCF of 120 80 and 45?
Factors for 120: 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60 Factors for 80: 2, 4, 5, 8, 10, 16, 20, 40 Factors for 45: 3, 5, 9, 15, 45 5 is the greatest common factor for 120, 80 and 45
What is the GCF of 72 and 80?
The GCF is 8.
What is the GCF of 80 and 76?
The GCF is 4.
What is the GCF of 80 and 100?
gcf of 80 and 100 is 20.The GCF is 20.
