The only number that could be both a factor and a multiple is 7 itself.
No. The only factors of a prime number are 1 and itself. The only way that 21 could be a factor of a prime number is if it were a prime number, but it is not because 21 is also divisible by 3 and 7.
It could be a number in scientific notation or standard form as for example 12,000,000 = 1.2*107
We could have really used that other number. Without that, the answer will be one of the factors of 28.
The number 10 is the value of the base itself. So tyhe answer is the smallest base. If integer, then 2 otherwise any number greater than 1.
The number one.
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 17 is a single number, you could say that it shares all of its factors with itself. So the greatest factor of 17 is 17.17 is a prime number, so the gcf of 17 would be 1.* * * * *Apart from the fact that a single number cannot have a COMMON factor - greatest or least, 17 does have a greater factor than 1. And that is 17 itself!A number cannot have a gcf...need at least twoYou need at least two numbers to find a GCF.
You need at least two numbers to have a common factor. You could say the GCF of 10 and 10 is 10, or the same for any number. However, that is a trivial statement. Perhaps you are thinking of a prime number, that is one which has only itself and 1 as factors.
A common factor is a number that is a factor of both (or all) the numbers in question. Therefore 55 would be a common factor of 110 and 165 because both of these numbers can be divided by 55.However, a number by itself (and not in reference to other numbers) cannot be called a common factor. So 55 could be a common factor, but isn't necessarily always one.
The answer depends on which number is missing. It could be any number from 71 to 100.