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Add together all the factors of a number, apart from itself.
If the answer is less than the number, then it is deficient.
If the answer is equal to the number, then it is perfect.
If the answer is greater than the number, then it is abundant.
The factors of 8 are 1, 2 and 4. 1+2+4 = 7 so 8 is deficient.
The factors of 6 are 1, 2 and 3. 1+2+3 = 6 so 6 is perfect.
The factors of 12 are 1, 2, 3, 4 and 6. 1+2+3+4+6 = 16 so 12 is abundant.
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Continue Learning about Math & Arithmetic
Are there more deficient numbers than abundant and perfect numbers?
There are more deficient numbers.
What is the classify of 321 abundant or perfect or deficient?
It is deficient.
Is 12 abundant perfect or deficient?
it is abundant
Is 144 an abundant deficient or perfect?
abundant
Is 13 abundant perfect or deficient?
13 is deficient.
Related Questions
Are there more deficient numbers than abundant and perfect numbers?
There are more deficient numbers.
Is 100 abundant deficient or perfect?
abundant
Do you think there more perfect than deficient or abundant numbers?
The answer will depend on where "there" is.
Is 45 an abundant deficient or perfect?
deficient
What is the classify of 321 abundant or perfect or deficient?
It is deficient.
Is 12 abundant perfect or deficient?
it is abundant
Is 144 an abundant deficient or perfect?
abundant
Is 13 abundant perfect or deficient?
13 is deficient.
Is 35 a abundant deficient or perfect number?
deficient
Is 29 a perfect abundant or deficient number?
It is deficient.
Is 99 abundant perfect or deficient?
perfect
Is 36 deficient perfect or abundant?
36 is abundant.
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