Math Gifs
Algebra
Geometry
Trigonometry
Calculus
Teacher Tools
Learn to Code
Calculator
Home
Perfect Number
Is 640 a perfect number?
Is 640 a perfect number? [SOLVED]
Answer
640 is not perfect because:
1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 32 + 40 + 64 + 80 + 128 + 160 + 320
≠
640
Related links:
All calculations
Is 640 a composite number?
Is 640 an even number?
Is 640 an irrational number?
Is 640 an odd number?
Is 640 a perfect square?
Is 640 a prime number?
Is 640 a rational number?
What are the factors of 640?
What are the multiples of 640?
What is the prime factorization of 640?