Is 57 A Composite Number. Since 357 has more than 2 factors, we can say that 357 is not a prime number. For example, 39 = 3 x 13, 100 = 2^2 x 5^2 , 240 = 2^4 x 3 x 5 etc., we can write the given number 57 as 3 x 19.
The numbers which can be generated by multiplying the two smallest positive integers and contain at least one divisor other than the number ‘1’ and itself are known as composite numbers. Yes, number 57 is a composite number. 5+7=12 which is divisible by 3.) and since 57 is divisible by more.
