Smallest composite number dividable by prime numbers is product of them all. In this case it is: 2x3x5x7x11 = 2310.
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If it is a composite number, it is divisible by at least one prime number.
400 is a composite number because it is divisible by more than two numbers. Because it ends in a 0, the divisibility rules indicate it is divisible by 2, 5, and 10. (It is also divisible by other numbers.) It is not a prime number because a prime number has exactly two factors, 1 and itself.
It is: 30
A number by which another is exactly divisible.
It is: 10152