Prime or composite?
Prime or composite
0%
Accuracy
0
Current streak
0
Total answers
Is this number prime or composite?
7
What does this generator do?
Picks a number from 2 to 50. Decide whether it has exactly two factors (1 and itself) — prime — or more — composite.
How to use it
Try dividing by small primes: 2, 3, 5, 7. If none divides exactly, the number is prime.
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