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To calculate factors using this tool, you will enter positive integers, because the calculator will only allow positive values, to calculate factors of a number. if you need to calculate negative numbers, you enter the positive value, get the factors and duplicate the answer yourself with all the give positive factors as negatives like as -5 and -6 as factors of number 30.
The factors of 1 are:1The factors of 3 are:1, 3The factors of 9 are:1, 3, 9The common factor is:1
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The common factors are: 1, 3
there are only 2 factors because 3 is a prime number: the factors are 1 and 3