What is the factorial of 100?
100! means multiply all whole numbers from 100 down to 1.
So,
100! = 100 × 99 × 98 × ... × 3 × 2 × 1
For any number n,
n! = n × (n - 1) × (n - 2) × ... × 2 × 1
100! ≈ 9.33262154 × 10^157
This means the number is about 9.33 followed by 157 zeros.
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