factors: 1, 11, 23, 253
prime factors: 11, 23
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The number 253 is composite. Why? 11*23 = 253. That means 253 has more factors than one and itself. Any number which has more factors than one and itself is composite, not prime.
A prime number is a number that is divisible only by 1 and itself; it has no other factors. A composite number is a number that is divisible by more than 2 numbers. The factors of 253 are 1, 11, 23, and 253. Therefore, 253 is a composite number.
Prime factorization of 253 is: 11 x 23
No.
11 × 23