12 + 5 + 6
Fifth grade homework is tough...the answer is abundant. Proper factors that total less than the number is deficient and proper factors that equal the number are perfect. Signed CMT of Bourne Middle School.
A number whose proper factors add up to less than the number is called deficient. 99 is a deficient number because the sum of its proper factors (1, 3, 9, 11, and 33) is 57.
a perfect cube
A perfect square.
A perfect square.
It is another rational number whose numerator and denominator (in the ratio's simplest form) are perfect squares.
a perfect cube
27 is a perfect cube.
A number sum of whose factors is equal to that number is known as perfect number. Eg. 6 Factors : 1,2,3 1+2+3=6 That's why it is a perfect number
A perfect square is a number whose square root is a whole number, such as 1, 4, 9, 16, 25, etc.
its called a "perfect square"
A perfect square.