AMC 10 Step by Step

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2015 AMC 10B Problem 10

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2015 AMC 10B Problem 10AMC 10 Step by Step

Name: Date: October 28, 2026

Modular Arithmetic · difficulty 2 of 5 · about 2 min · position P1-10

What is the sign and units digit of the product of all the odd negative integers strictly greater than $-2015$ ?

A) $\text{It is a negative number ending with a 1.}$
B) $\text{It is a positive number ending with a 1.}$
C) $\text{It is a negative number ending with a 5.}$
D) $\text{It is a positive number ending with a 5.}$
E) $\text{It is a negative number ending with a 0.}$

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