Math Gifs
Algebra
Geometry
Trigonometry
Calculus
Teacher Tools
Solver
Home
Perfect Number
Is 90 a perfect number?
Is 90 a perfect number? [SOLVED]
Answer
90 is not perfect because:
1 + 2 + 3 + 5 + 6 + 9 + 10 + 15 + 18 + 30 + 45
≠
90
Related links:
All calculations
Is 90 a composite number?
Is 90 an even number?
Is 90 an irrational number?
Is 90 an odd number?
Is 90 a perfect square?
Is 90 a prime number?
Is 90 a rational number?
What are the factors of 90?
What are the multiples of 90?
What is the prime factorization of 90?