The answer depends on which country you are studying in.
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There is none. A common divisor is a number which can be used to divide your quantities with , and finish up with a Whole Number with both of them . EXAMPLE Take the numbers, 6 and 15 The only number which you can divide BOTH of them with, and get a whole number as an answer, is the number 3 This number is called the Common Divisor. Let me do it for you: 6 divided by 3 equals 2. And 15 divided by 3 is 5. How do you find out what the common divisor is ? Answer. Break both the numbers into all the prime number 'factors'. E.g. Factors of 6 are 3 x 2. Factors of 15 are 3 x 5. Now you use the factors which are contained in BOTH of them. They BOTH contain only the number 3 as their COMMON factor. This number 3 is the Common Divisor. Now you can see why (your question ) 3 and 8 do not have any common divisor because the factors of 8 equal 2 x 2 x 2 and the factors of 3 is only 3. They have NOTHING in common , so they have no common divisor. MORE: The number 1 is a comon divisor or common factor, but we ignore that because everyone knows that 1 is a common factor in every number you can think of.
To find the LCM of two numbers you first express them as their prime factors. In this case we have: 9 = 3x3 11 = 11 The next step would be to identify any common factors. In this case there are none, so simply take all the factors (3, 3 and 11) and multiply them together: 3x3x11 = 99 Thus the LCM of 9 and 11 is 99.
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.Since 1375 is a single number, you could say that it shares all of its factors with itself. So the greatest factor of 1375 is 1375
No, 2 is a common factor of all even numbers but not necessarily the greatest common factor. Take 40 and 32: 40:1,2,4,5,8,10,20,40 32:1,2,4,8,16,32 8 is the greatest common factor of these two even numbers.
To find the greatest common factor (GCF) of 336 and 630, we first need to find the prime factorization of each number. The prime factorization of 336 is 2^4 * 3 * 7 and the prime factorization of 630 is 2 * 3^2 * 5 * 7. To find the GCF, we take the highest power of each common prime factor, which is 2^1 * 3^1 * 7^1 = 42. Therefore, the greatest common factor of 336 and 630 is 42.