Skip to content / Đến nội dung
ThichHocToan.com

2025 AIME I Question 5

AIME · 2025 AIME I

Question 5

There are $8! = 40320$ eight-digit positive integers that use each of the digits $1,$ $2,$ $3,$ $4,$ $5,$ $6,$ $7,$ $8$ exactly once. Let $N$ be the number of these integers that are divisible by $22.$ Find the difference between $N$ and $2025.$