Solution: To find the smallest prime factor of 1211, we test divisibility by small primes. First, 1211 is odd, so not divisible by 2. The sum of the digits is $ 1 + 2 + 1 + 1 = 5 $, not divisible by 3. It doesn't end in 0 or 5, so not divisible by 5. Next, test divisibility by 7:

Fri, 17 Apr 2026 07:46:28 +0000

Content under review