Question

If n is a natural number, then the number of consecutive zeros in 7ⁿ, is ______.

Answer 1

If n is a natural number, then the number of consecutive zeros in 7ⁿ, is 0.

Explanation:

Trailing (consecutive) zeros in base 10 come from factors of 10 = 2 × 5. The number 7ⁿ has only the prime factor 7 (no 2s or 5s), so it contributes 0 factors of 10 for any natural n and 7⁰ = 1 also has no trailing zeros.