Enter any integer (up to 1,000,000) to instantly get its prime factorization, determine if it's prime or composite, and see the sum of all its divisors.
No. By definition, a prime number has exactly two distinct divisors: 1 and itself. The number 1 has only one divisor (itself), so it is neither prime nor composite.
Trial division: divide n by 2, then odd numbers up to √n. Each divisor found is a prime factor. Repeat until quotient = 1.
Example: 360 = 2 × 2 × 2 × 3 × 3 × 5 = 2^3 × 3^2 × 5
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