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The greatest common factor (GCF) of two numbers is the largest number that divides both numbers without leaving a remainder. To find the GCF of 405 and 486, we can use the prime factorization method. First, we find the prime factors of both numbers: 405 = 3 x 3 x 3 x 3 x 5 and 486 = 2 x 3 x 3 x 3 x 3 x 3. Then, we identify the common prime factors, which are 3 x 3 x 3 = 27. Therefore, the GCF of 405 and 486 is 27.
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How many times does 5 go into 2025?
Sorray
What is 81 times 65?
First take the '5' in '65'. The number '81' times '5' gives you '405'. Then take the '6' in '65'. The number '81' times '6' gives you '486'.Now add '405' and '486'. But you'll be shifting the '486' one place over to the left. So starting from the right on the upper adding line, the '5' from '405' has nothing to be added together with. So the result is '5'.Go to the '0' in '405'. It needs to be added with the '6' of '486'. That gives you '6'.Go to the '4' in '405'. It needs to be added with the '8' of '486'. That gives you '12'. Keep the '2' of '12', but carry the '1' over to the left.There's nothing left from the adding line that has '405'. But you still have the '4' of '486' on the lower adding line. So you add the '1' of '12' to the '4' of '486'. That gives you '5'.So your total is 5,265.
What is the GCF of 405 and 245?
5
What is the GCF for 78 168 486?
To find the Greatest Common Factor (GCF) of 78, 168, and 486, we first need to find the prime factorization of each number. 78 = 2 * 3 * 13 168 = 2^3 * 3 * 7 486 = 2 * 3^5 Next, we identify the common prime factors among the three numbers, which are 2 and 3. The GCF is the product of these common prime factors raised to the lowest power they appear in any of the numbers. Therefore, the GCF of 78, 168, and 486 is 2 * 3 = 6.
What number is nine times as large as 54?
It is: 9*54 = 486
