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Earn +20 ptsQ: How many perfect numbers are there under 100?
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Is 50 a perfect number?
No, the only perfect numbers under 100 are 6 and 28.
How many numbers are divisible by 5 under 100?
19 numbers.
How many cube numbers are under 100?
4 of them.
Is only 6 and 28 the perfect numbers from 1-100?
Yes. The next perfect numbers are 496 and 8128.
How many perfect square numbers are there from 1-100?
101
Related questions
Is 50 a perfect number?
No, the only perfect numbers under 100 are 6 and 28.
What are the perfect numbers up to 100?
There are 48 different numbers that are considered to be perfect numbers. The perfect numbers that are up to 100 include 6 and 28.
How many perfect numbers are there from 1-100?
101
What are all the perfect numbers less than 100?
The perfect numbers less than 100 are 6 and 28.
How many numbers are divisible by 5 under 100?
19 numbers.
How many square numbers from 1 to 10000 inclusive?
Infinitely many. There are a 100 perfect squares.
How many prime numbers under 100?
25
How many cube numbers are under 100?
4 of them.
How many prime numbers are under 100?
25 now.
How many numbers from 10 through 100 have the sum of their digits equal to a perfect square?
18
Is 31 a perfect number?
No. The only perfect numbers less than 100 are 6 and 28. All known perfect numbers are even - it is unknown whether there are odd perfect numbers.
How many 3 digit numbers are under 500?
The 3 digit numbers under 500 are 100 through 499.
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