Common Factor Calculator — Quick & Accurate Online Calculator & Guide
Find all common factors shared by two numbers. Lists every divisor that divides both numbers evenly, with the Greatest Common Factor (GCF) highlighted.
✓ Formula verified: January 2026
Common Factors
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Greatest Common Factor (GCF)
12
All Common Factors
1, 2, 3, 4, 6, 12
Number of Common Factors
6
Factors of 24
1, 2, 3, 4, 6, 8, 12, 24
Factors of 36
1, 2, 3, 4, 6, 9, 12, 18, 36
What if your number a changes? 21.6 → 3 · 24 → 12 · 26.4 → 2
Scenario Comparison
Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Common Factors
Greatest Common Factor
12
Common Factors
1234612
Factors of 24
1234681224
Factors of 36
123469121836
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