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)
2×3×3
18 =
2×3×3
1.
2)
2×19
38 =
2×19
2.
3)
17 =
17
17
3.
4)
7×13
91 =
7×13
4.
5)
2×29
58 =
2×29
5.
6)
24 =
2×2×2×3
2×2×2×3
6.
7)
2×3×3×5
90 =
2×3×3×5
7.
8)
47 =
47
47
8.
9)
15 =
3×5
3×5
9.
10)
3×13
39 =
3×13
10.
11)
30 =
2×3×5
2×3×5
11.
12)
2×2×3
12 =
2×2×3
12.
13)
59
59 =
59
13.
14)
19 =
19
19
14.
15)
3×3×3×3
81 =
3×3×3×3
15.
16)
2×19
38 =
2×19
16.
17)
55 =
5×11
5×11
17.
18)
2×5×7
70 =
2×5×7
18.
19)
3×29
87 =
3×29
19.
20)
28 =
2×2×7
2×2×7
20.
1-10 95 90 85 80 75 70 65 60 55 50
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