In math, there are two types of numbers: prime and composite. A number is prime if it has no factors other than 1 and itself. 57 is composite, because it has two factors, 19 and 3. 19x3=57
Chat with our AI personalities
57 is divisible by 3 so it is composite. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1, 2, and 0. 1, 2, and 0 have a different name.
Try dividing it by 5....
38 is a composite number
1x57=57 19x3=57
it is composite.