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List all the factor pairs for 48

User Ted Yu
by
7.8k points

2 Answers

3 votes

The correct answers are:


image

Step-by-step explanation:

We can use our divisibility rules to find the factors of 48. First off, we know that 1 is a factor of every number; to make 48 from 1, we multiply 1(48).

Since 48 is even, that means 2 is a factor; 48/2 = 24, so 2 and 24.

For 3, check the sum of the digits. 4+8 = 12; this is divisible by 3, so 48 is divisible by 3. 48/3 = 16, so we have 3 and 16.

For 4, since it is a two digit number, we just have to manually check. 4 goes into 4, and 4 goes into 8, so 4 goes into 48. 48/4 = 12, so we have 4 and 12.

For 5, the number does not end in 5 or 0, so it is not divisible by 5.

For 6, we check for divisibility by 2 and 3. Since it is divisible by both, then it is divisible by 6. 48/6 = 8, so we have 6 and 8.

For 7, since it is such a small number, we can just check. It is not divisible by 7.

We know from earlier that 48 is divisible by 8; 48/6 = 8, so 48/8 = 6. Since we have begun to repeat factors, we are finished.

User Cadilac
by
7.4k points
3 votes

we know that

Factor pairs are any two numbers being multiplied to give you a certain number.


48 is a composite number because it has factors other than
1 and itself. It is not a prime number. The
10 factors of
48 are


1, 2, 3, 4, 6, 8, 12, 16, 24, and 48

The factor pairs of
48 are


48,1------>
48*1=48


24,2------>
24*2=48


16,3------>
16*3=48


12,4------>
12*4=48


and


8,6------>
8*6=48

User Uksz
by
7.8k points