No, 80 is a not perfect square.
They are numbers that are NEAR PERFECT. a near perfect number is when its factors (exept the actual number) are added up and ALMOST equal the number ex. 16x1/2x8/4x4/ so its factors are 1,2,4,8 and 16 so add them ( exept the actual number) 1+2+4+8=15 so its NEAR PERFECT and a perfect number is a number that all its factors equal to its number ex. 6-1,2,3,6 are its factors all together-1+2+3=6 those are NEAR PERFECT and PERFECT numbers
No, 3.6 is not a perfect square. A perfect square is defined as a number that has a whole number for a square root. In other words, there's no whole number that, when multiplied by itself, equals 3.6.
Yes, a perfect square is a number that has an integer square root.
No, a perfect square number will ALWAYS ends in 0,1,4,5,6,9
20 is a not perfect square.
28 is a perfect number.
20 is a not perfect square.
The only perfect number between 20 and 50 is 28.
It isn't a perfect number.A perfect number is a number which is the sum of its proper divisors (including 1, but excluding itself).The divisors of 20 are 1, 2, 4, 5, 10.1 + 2 + 4 + 5 + 10 = 22 => 20 is not a perfect number.An example of a perfect number is 28:The divisors of 28 are 1, 2, 4, 7, 141 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
The number is 28.
abundant
Abundent
No, it is not. 4x4=16; 5x5=25 20=4x5
No. In the first hundred numbers, there are only two perfect numbers: 6, and 28.
It is 28 I did that at school in year 6
300+20+8 is 10 less than what number