Drag each pair of numbers to show if their greatest common factor (GCF) is less than 5, equal to 5, or greater than 5.
20 and 30
6 and 33
3 and 20
15 and 20
25 and 30
12 and 30
Drag each pair of numbers to show if their greatest common factor (GCF) is less than 5, equal to 5, or greater than 5.
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To find the GCF of each pair of numbers, we’ll look for the largest number that divides both numbers without leaving a remainder.
1. 20 and 30:
– Factors: 20 (1, 2, 4, 5, 10, 20) and 30 (1, 2, 3, 5, 6, 10, 15, 30)
– GCF = 10 (greater than 5)
2. 6 and 33:
– Factors: 6 (1, 2, 3, 6) and 33 (1, 3, 11, 33)
– GCF = 3 (less than 5)
3. 3 and 20:
– Factors: 3 (1, 3) and 20 (1, 2, 4, 5, 10, 20)
– GCF = 1 (less than 5)
4. 15 and 20:
– Factors: 15 (1, 3, 5, 15) and 20 (1, 2, 4, 5, 10, 20)
– GCF = 5 (equal to 5)
5. 25 and 30:
– Factors: 25 (1, 5, 25) and