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A mathemtical trick is to note that all three numbers are divisible by '9'.
How do we known this?? Because the sum of the digits in each number adds to '9'.
Hence 189, 567, 2187)
189 ; 1 + 8 + 9 = 18 = 1 + 8 = 9
567 ; 5 + 6 + 7 = 18 = 1 + 8 = 9
2187 [ 2 + 1 + 8 + 7 = 18 = 1 + 8 = 9
189/9 = 21
567/ 9 = 63
2187/9 = 243
All three sub-answer will divide by '3'
Hence 7,9,81 ( There are NO common factors )
Hence
9 x 3 = 27 is the GCF.
NB THis mathemtical 'trick' can only be done with '9'. !!!!!
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What are the factors and prime factors of 189 on the factor tree?
The 8 factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. 3 and 7 are prime.
What is the square root of 189?
13.7477271
Which digit in 2345 is in the same place as the 1 in the 189?
3 is in the hundreds place
What is 27x7 equals?
27 x 7 = 189
What is 0.189 in fraction form?
0.189 = 189/1000
What is the greatest common divisor of 21 and 189?
The Greatest Common Divisor of 21, 189 is 21.
What is the Greatest Common Divisor of 105 and 189?
The Greatest Common Divisor of 105, 189 is 21.
What is the least common multiple of 189 567 and 2187?
The Least Common Multiple (LCM) for 189 567 2187 is 15,309.
What is the GCD of 189 1701 2187?
The GCF is 27.
What is the greatest common factor of 90 and 189?
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 135 and 189 is 27
What is the greatest common factor of 36 and 189?
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 36 and 189 is 9
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 189 and 449?
The Greatest Common Factor of 189 and 449 is 1.
What is the LCM of 189 567 and 2187?
The LCM is 15309.
What is the greatest common factor of 189 and 195?
The greatest common factor of 189 and 195 is 3.
What is the greatest common factor of 189 and 117?
The greatest common positive integer factor of 117 and 189 is 9.
What is the greatest common factor of 189 and 225?
Greatest common factor of 189 and 225 is 9.
