Maths Olympiad Prep

Track / Stage 4 / 15 of 340 #275 of 1964

Problem 275

AMC 12 late, AIME early
Number theory Difficulty 4.5 Multiple choice

A3. How many divisors does the number 152 have?

Pick one

Official solution

A3. The number 152 can be written as a prime factorization: 222192 \cdot 2 \cdot 2 \cdot 19, from which we can determine that its divisors are: 1,2,4,8,19,38,761,2,4,8,19,38,76 and 152. The number 152 has 8 divisors.

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