Finding Prime Factors - Math Worksheet With Answer Key
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1
2Name:
Finding Prime Factors
Find the prime factors for each number.
A n s w e r s
1)
3×3×3×3
81 =
3×3×3×3
1.
2)
41
41 =
41
2.
3)
70 =
2×5×7
2×5×7
3.
4)
3×13
39 =
3×13
4.
5)
7×13
91 =
7×13
5.
6)
43 =
43
43
6.
7)
2×17
34 =
2×17
7.
8)
16 =
2×2×2×2
2×2×2×2
8.
9)
26 =
2×13
2×13
9.
10)
2×43
86 =
2×43
10.
11)
18 =
2×3×3
2×3×3
11.
12)
3×3×11
99 =
3×3×11
12.
13)
2×2×7
28 =
2×2×7
13.
14)
47 =
47
47
14.
15)
2×31
62 =
2×31
15.
16)
2×47
94 =
2×47
16.
17)
68 =
2×2×17
2×2×17
17.
18)
2×2×2×3×3
72 =
2×2×2×3×3
18.
19)
3×3×5
45 =
3×3×5
19.
20)
47 =
47
47
20.
1-10 95 90 85 80 75 70 65 60 55 50
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11-20 45 40 35 30 25 20 15 10 5
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