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Is 42 a perfect number?
Use the definition of a perfect number! Add the factors; if the sum of all the factors (excluding the number itself) is equal to the number, it is a perfect number, otherwise it isn't. (Actually, the only perfect numbers less than 100 are 6, and 28.)Use the definition of a perfect number! Add the factors; if the sum of all the factors (excluding the number itself) is equal to the number, it is a perfect number, otherwise it isn't. (Actually, the only perfect numbers less than 100 are 6, and 28.)Use the definition of a perfect number! Add the factors; if the sum of all the factors (excluding the number itself) is equal to the number, it is a perfect number, otherwise it isn't. (Actually, the only perfect numbers less than 100 are 6, and 28.)Use the definition of a perfect number! Add the factors; if the sum of all the factors (excluding the number itself) is equal to the number, it is a perfect number, otherwise it isn't. (Actually, the only perfect numbers less than 100 are 6, and 28.)
Is 15 a deficient number?
Yes 15 is a deficient number because its factors add upp to less than the number itself,which is 15.
Why is 13 a deficient number?
Because all of its factors also known as 13 and 1 add up to be more than the number itself 13.
Is the number 10 a perfect number?
No. The factors of 10 other than 10 itself are 1, 2, and 5. These add up to 8, not 10.
Is 7 a composite number or prime?
Prime. It is only divisible by itself and one.
