CBSE Class 4 Maths Factors Worksheet Set 01

Factors and Factor Pairs Worksheet

Question 1. Draw a line to match the factor pairs for the number 78. Given numbers in box: 78, 13, 26, 2, 6, 3, 1, 39
Answer: The factor pairs of 78 are pairs of numbers that multiply together to give 78.
1 \times 78 = 78 (Pair: 1 and 78)
2 \times 39 = 78 (Pair: 2 and 39)
3 \times 26 = 78 (Pair: 3 and 26)
6 \times 13 = 78 (Pair: 6 and 13)
In simple words: Factor pairs are two numbers that multiply to give the target number.

Exam Tip: Always check divisibility rules. Since 78 is even, 2 is a factor. The sum of digits is \(7 + 8 = 15\), which is divisible by 3, so 3 is also a factor.

Question 2. Draw a line to match the factor pairs for the number 64. Given numbers in box: 2, 8, 64, 16, 1, 32, 4, 8
Answer: The factor pairs of 64 are:
1 \times 64 = 64 (Pair: 1 and 64)
2 \times 32 = 64 (Pair: 2 and 32)
4 \times 16 = 64 (Pair: 4 and 16)
8 \times 8 = 64 (Pair: 8 and 8)
In simple words: Find pairs of numbers from the given box whose product equals 64.

Exam Tip: Remember that square numbers like 64 have a factor that multiplies by itself (\(8 \times 8\)).

Question 3. Draw a line to match the factor pairs for the number 56. Given numbers in box: 8, 1, 2, 14, 28, 4, 7, 56
Answer: The factor pairs of 56 are:
1 \times 56 = 56 (Pair: 1 and 56)
2 \times 28 = 56 (Pair: 2 and 28)
4 \times 14 = 56 (Pair: 4 and 14)
7 \times 8 = 56 (Pair: 7 and 8)
In simple words: Match the numbers that multiply to make 56.

Exam Tip: Use your multiplication tables up to 10 to quickly identify standard factor pairs like \(7 \times 8 = 56\).

Question 4. Match the factor pairs and write them on the eggs for the number 72. Given numbers in box: 24, 36, 18, 6, 8, 72, 9, 1, 4, 12, 3, 2
Answer: The factor pairs of 72 are:
1 \times 72 = 72
2 \times 36 = 72
3 \times 24 = 72
4 \times 18 = 72
6 \times 12 = 72
8 \times 9 = 72
In simple words: List all combinations of two numbers from the box that give a product of 72 and write them on the eggs.

Exam Tip: Systematically check numbers from 1 onwards to ensure no factor pairs are missed for larger numbers like 72.

Question 5. Match the factor pairs and write them on the eggs for the number 24.
Answer: The factor pairs of 24 are:
1 \times 24 = 24
2 \times 12 = 24
3 \times 8 = 24
4 \times 6 = 24
In simple words: Find all sets of two numbers that multiply to 24 and place them on the eggs.

Exam Tip: 24 has many factors because it is a highly composite number. Check all single-digit table products up to 24.

Question 6. Match the factor pairs and write them on the eggs for the number 40.
Answer: The factor pairs of 40 are:
1 \times 40 = 40
2 \times 20 = 40
4 \times 10 = 40
5 \times 8 = 40
In simple words: Find the pairs of numbers that multiply to 40 and write them on the corresponding eggs.

Exam Tip: Numbers ending in 0 are always divisible by 2, 5, and 10.

Question 7. Match the factor pairs and write them on the eggs for the number 28.
Answer: The factor pairs of 28 are:
1 \times 28 = 28
2 \times 14 = 28
4 \times 7 = 28
In simple words: Find the pairs of numbers that multiply to 28 and write them on the eggs.

Exam Tip: Memorize basic multiplication facts to quickly recall factors of numbers under 30.