Write the Prime Factors of given Numbers

Name Grade School
Date Questions20 Score

1
What are the prime factors of 42?
2
What are the prime factors of 45?
3
What are the prime factors of 36?
4
What are the prime factors of 56?
5
What are the prime factors of 60?
6
What are the prime factors of 100?
7
What are the prime factors of 44?
8
What are the prime factors of 12?
9
What are the prime factors of 165?
10
What are the prime factors of 101?
11
What are the prime factors of 1009?
12
What are the prime factors of 120?
13
What are the prime factors of 140?
14
What are the prime factors of 18?
15
What are the prime factors of 16?
16
What are the prime factors of 1729?
17
What are the prime factors of 20?
18
What are the prime factors of 24?
19
What are the prime factors of 210?
20
What are the prime factors of 28?

Answers Key
1
What are the prime factors of 42?
2 x 3 x 7
Prime factor of 42
242
321
77
1
2, 3 & 7 are the prime factors of 42
42 = 2 x 3 x 7
2
What are the prime factors of 45?
3 x 3 x 5
Prime factor of 45
345
315
55
1
3, 3 & 5 are the prime factors of 45
45 = 3 x 3 x 5
3
What are the prime factors of 36?
2 x 2 x 3 x 3
Prime factor of 36
236
218
39
33
1
2, 2, 3 & 3 are the prime factors of 36
36 = 2 x 2 x 3 x 3
4
What are the prime factors of 56?
2 x 2 x 2 x 7
Prime factor of 56
256
228
214
77
1
2, 2, 2 & 7 are the prime factors of 56
56 = 2 x 2 x 2 x 7
5
What are the prime factors of 60?
2 x 2 x 3 x 5
Prime factor of 60
260
230
315
55
1
2, 2, 3 & 5 are the prime factors of 60
60 = 2 x 2 x 3 x 5
6
What are the prime factors of 100?
2 x 2 x 5 x 5
Prime factor of 100
2100
250
525
55
1
2, 2, 5 & 5 are the prime factors of 100
100 = 2 x 2 x 5 x 5
7
What are the prime factors of 44?
2 x 2 x 11
Prime factor of 44
244
222
1111
1
2, 2 & 11 are the prime factors of 44
44 = 2 x 2 x 11
8
What are the prime factors of 12?
2 x 2 x 3
Prime factor of 12
212
26
33
1
2, 2 & 3 are the prime factors of 12
12 = 2 x 2 x 3
9
What are the prime factors of 165?
3 x 5 x 11
Prime factor of 165
3165
555
1111
1
3, 5 & 11 are the prime factors of 165
165 = 3 x 5 x 11
10
What are the prime factors of 101?
101
Prime factor of 101
101101
1
& 101 are the prime factors of 101
101 = 101
11
What are the prime factors of 1009?
1009
Prime factor of 1009
10091009
1
& 1009 are the prime factors of 1009
1009 = 1009
12
What are the prime factors of 120?
2 x 2 x 2 x 3 x 5
Prime factor of 120
2120
260
230
315
55
1
2, 2, 2, 3 & 5 are the prime factors of 120
120 = 2 x 2 x 2 x 3 x 5
13
What are the prime factors of 140?
2 x 2 x 5 x 7
Prime factor of 140
2140
270
535
77
1
2, 2, 5 & 7 are the prime factors of 140
140 = 2 x 2 x 5 x 7
14
What are the prime factors of 18?
2 x 3 x 3
Prime factor of 18
218
39
33
1
2, 3 & 3 are the prime factors of 18
18 = 2 x 3 x 3
15
What are the prime factors of 16?
2 x 2 x 2 x 2
Prime factor of 16
216
28
24
22
1
2, 2, 2 & 2 are the prime factors of 16
16 = 2 x 2 x 2 x 2
16
What are the prime factors of 1729?
7 x 13 x 19
Prime factor of 1729
71729
13247
1919
1
7, 13 & 19 are the prime factors of 1729
1729 = 7 x 13 x 19
17
What are the prime factors of 20?
2 x 2 x 5
Prime factor of 20
220
210
55
1
2, 2 & 5 are the prime factors of 20
20 = 2 x 2 x 5
18
What are the prime factors of 24?
2 x 2 x 2 x 3
Prime factor of 24
224
212
26
33
1
2, 2, 2 & 3 are the prime factors of 24
24 = 2 x 2 x 2 x 3
19
What are the prime factors of 210?
2 x 3 x 5 x 7
Prime factor of 210
2210
3105
535
77
1
2, 3, 5 & 7 are the prime factors of 210
210 = 2 x 3 x 5 x 7
20
What are the prime factors of 28?
2 x 2 x 7
Prime factor of 28
228
214
77
1
2, 2 & 7 are the prime factors of 28
28 = 2 x 2 x 7

Prime Factorization of Numbers Worksheet

Write the prime factors of numbers worksheet with answers to practice & learn 6th grade math problems on factorization is available online for free in printable & downloadable (pdf & image) format. Tap on PRINT, PDF or IMAGE button to print or download this grade-6 worksheet to practice how to find the prime factorization of given number.

How to Use this Worksheet

In this sixth grade math worksheet, students are required to find & write the prime factors of given numbers. To factorize the number, use the special division as like as the step by step work given in the answer key. The prime numbers is the building blocks of all positive integers.

Answers Key

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