Eight: 1 2 3 6 13 26 39 78.
11 and 22
14
It is 13.
It depends on the number being factored. 22 is a proper factor of 44. 22 is a factor, but not a proper factor, of 22.
20 and 30 All numbers have at least one common factor.
The Greatest Common Factor is the highest number that divides exactly into two or more numbers. 22: 1, 2, 11 22 32: 1, 2, 4, 8, 16, 32 The Greatest Common Factor of 22 and 32 is 2.
Any number that is not 1, 2, 11 and 22
2 and 11
A 22 digit number is called a quintillion.
The gcf of 43 and 129 is 43, so the two digit number must be 43; howeverthe gcf of 86 and 129 is also 43, so the two digit number must be 86; howeverthe gcf of 22 and 86 is only 2 and the gcf of 22 and 43 is only 1, no neither 43 nor 86 has a gcf of 43!Hint:You cannot have a COMMON factor with only onenumber - common implies at least two numbers.The greatest COMMON factor is the largest number that divides all the numbers and depends upon all the numbers - it makes no sense to ask for the greatest COMMON factor of a single number.
Each digit is a prime number that has only two factors which are itself and one The prime factors of the number 22 are 2 and 11
22
It depends on the number being factored. 22 is a proper factor of 44. 22 is a factor, but not a proper factor, of 22.
6
20 and 30 All numbers have at least one common factor.
Yes.
It can be. 22 is a proper factor of 44.
The expression 'common factor' or 'highest common factor' only applies when comparing the factors of two or more numbers. The factors of 22 are 1,2,11 and 22. Ignoring 22 itself, the highest factor is 11.
The factors of 22 are 1, 2, 11, 22. For them to be common, they need to be compared to another set of factors.
878 three digit numbers have an even number of factors. Every factor of a number has a pair, so there ought to be an even number of factors for every number. However, if a pair of the factors are the same number, then there will be an odd number of factors, that is if the number is a perfect square. Assuming three digit numbers are 100 to 999: From 100 to 999, the perfect squares are 102 = 100 to 312 = 961, a total of 31-10+1 = 22 numbers. So of the 999-100+1 = 900 three digit numbers, 22 have an odd number of factors, so 900-22 = 878 have an even number of factors.