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ਕਦਮ ਦਰ ਕਦਮ

1. \sqrt{103} \approx 10

   Only primes up to √103 need testing: any factor above it pairs with one below.

2. 103 \bmod 2 = 1

   2 does not divide 103.

3. 103 \bmod 3 = 1

   3 does not divide 103.

4. 103 \bmod 5 = 3

   5 does not divide 103.

5. 103 \bmod 7 = 5

   7 does not divide 103.

6. \text{103 is prime}

   No prime up to the square root divides it, so it has no factors other than 1 and itself.

ਜਵਾਬ ਦਿਓ

\text{103 is prime}