In math divisor is defined as “the number that you are going to divide by”. Divisor of a given integer can also be called as the divisor of a given integer.
Dividend /Divisor = Quotient.
Positive number/ Negative number = negative number
Negative number/Positive number = negative number
Positive/Positive = Positive
Let us have an example 16/2 = 8 here 2 is a divisor.
16/4= 4 here 4 is a divisor.
16/8= 2 here 4 is a divisor.
In the above shown example the divisors are positive and also known as positive divisors.
The positive divisors when the dividend is 16 are 8, 4, and 2.
Example Problems for Positive Divisors:
Example problem 1:
Find the positive divisors of 28
Solution:
Positive Divisors of 28 are 1, 2, 4, 7, 14, and 28
Where 28 /1 = 28.
28 /2 = 14.
28 /4 = 7.
28 /7 = 4.
28 /14 = 2.
28 / 28 = 1
Hence for 28 we have 6 Positive divisors
Moreover 28 is a composite number
Example problem 2:
Find the positive divisors of 52
Solution
Positive Divisors of 52 are 1, 2, 4, 13, 26, and 52.
Where 52/1=52.
52/2=26.
52/4=13.
52/13=4.
52/26=2.
52/52=1.
Hence for 52 we have 6 Positive divisors
Example problem 3:
Find the positive divisors of 30
Solution
Positive Divisors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30.
Where 30/1=30
30/2= 15.
30/3=10.
30/5=4.
30/6=5.
30/10=3.
30/15=2.
30/30=1
Hence for 30 we have 8 Positive divisors
Example problem 4:
Find the positive divisors of 100
Solution
The positive divisors of 100 are 1,2,4,5,10,20,25,50,100
Where 100/1=100
100/2= 50.
100/4=25.
100/5=20.
100/10=10.
100/20=5.
100/25=4.
100/50=2.
100/100=1.
Hence for 100 we have 9 Positive divisors
Example problem 5:
Find the positive divisor of 31
Solution
Given that 31 is a prime number
All the prime numbers have only two divisors
The two divisors are 1 and the numbers itself
So the positive divisor of the number 31 is 1, 31 alone.
Finally the divisors of the prime numbers are 1 and the number itself.
Practice Problems for Positive Divisors:
Problem 1:
Find the positive divisor of 63
Solution:
The divisors of 63 is 1, 3,7,9,21,63
So the number 63 has 6 divisors.
Problem 2:
Find the positive divisor of 37
Solution:
The divisors of 37 are 1, 37
Problem 3:
Find the positive divisor of 15
Solution:
The divisors of 15 is 1, 3, 5, 15
Problem 4:
Find the positive divisor of 35
Solution:
The divisors of 35 is 1, 5, 7, 35
No comments:
Post a Comment