1,2,11
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22 is a composite number; it has factors other than 1 and itself. It is not a prime number.The factors of 22 are 1, 2, 11, and 22.The factor pairs of 22 are 1 x 22 and 2 x 11.The proper factors of 22 are 2 and 11.The prime factors of 22 are 2 and 11.
Prime numbers don't have proper factors.
The proper factors of 26 are 2 and 13
Prime numbers don't have proper factors.
Proper factors do not include one and the number itself.