How many different positive integers divisible by 4 can be formed using each of the digits 1, 2, 3, and 4 at most once, and no other digits? For example, 12 counts, but 512 does not.
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<|im_start|>user
How many different positive integers divisible by 4 can be formed using each of the digits 1, 2, 3, and 4 at most once, and no other digits? For example, 12 counts, but 512 does not.
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16
How many different positive integers divisible by 4 can be formed using each of the digits 1, 2, 3, and 4 at most once, and no other digits? For example, 12 counts, but 512 does not.
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