GCF of Numbers
Factoring Quadratics, A = 1
Trinomials (GCF)
Negative Leading Coefficient (GCF)
100
What is the greatest common factor of 10 and 5?
5
100

x+ 14x + 33

(x+3)(x+11)

100

14a + 21a2 + 21a3

7a(2 + 3a + 3a2)

100

-6r5 - 6r4

-6r4(r + 1)

200
What is the greatest common factor of 4 and 30?
2
200

x2 - 8x - 48

(x+4)(x-12)

200

50p3 + 50p2 - 20

10(5p3 + 5p2 − 2)

200

-20n3 - 35n2 +20

-5(4n3  + 7n2 - 4)

300
What is the greatest common factor of 12 and 5?
1
300

k2 - 7k + 12

(k-3)(k-4)

300

9x6− 63x3 − 90x2

9x2(x- 7x - 10)

300

-90x5 + 100x + 60

-10(9x5 - 10x - 6)

400
What is the greatest common factor of 50 and 120?
10
400

m2 + 2m - 35

(m-5)(m+7)

400

10n3 - 9n2 + n

n(10n2 - 9n + 1)

400

-18n2 + 15n - 15

-3(6n2 - 5n +5)

500
What is the greatest common factor of 120 and 24?
24
500

x2 - 19x + 34


(x-2)(x-17)

500

9x4y2 - 15x3y + 3x2y

3x2y(3x2y - 5x + 1)

500

-3k3 + 15k2 - 6k

-3k(k2 -5k + 2)

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