3

Part of 2023 Assara - South Russian Girl's MO

Problems(1)

1 * 2 * 3 * 4 * 5 * ... * 60 * 61 * 62 = 2023, use + ., - or x

Source: 2023 South Russian Girls MO - Assara Juniors p3

1 * 2 * 3 * 4 * 5 * ... * 60 * 61 * 62 = 2023

Instead of each asterisk, you need to put one of the signs “+” (plus), “-” (minus), “•” (multiply) so that the equality becomes true. What is the smallest number of "•" characters that can be used?

number theorycombinatorics