A palindromic number divisible by 9.
If 6 people can sit at a rectangular table and 10 people can sit at 2 tables placed end-to-end, how many people can sit at 19 tables placed end-to-end?
A number y such that y>1 and y = ((a^3)^2)^2, where a is an integer.
A permutable prime number, i.e., it is prime and its digits can be rearranged to form another prime number
The number that fills in the blank: 99.7, 95, ___, 50
The least common multiple of the numbers 1 through 10.
A multi-digit number where the product of the digits equals the sum of the digits.
A number whose value is the same in binary notation.
A "perfect number"; i.e., the sum of its proper divisors (its factors excluding itself) equal the number itself (e.g., 6's factors are 1, 2, & 3 and 1+2+3 = 6)
A palindromic number that is divisible by 6.
The largest three-digit perfect square.
A number that is the product of three consecutive single-digit numbers.
A palindromic number divisible by 4.
A number who has a factor of 61.
A safe prime, i.e., a prime that is equal to 2p + 1, where p is a smaller prime number.
A number where sin(x)=0, where x is the number's value in degrees
The largest prime that is 1 less than a perfect square.
A prime number that is 10 away from the next nearest prime on the number line.
The smallest number that has 6 unique factors (including itself).
The number that comes next in the sequence: 0, 1, 3, 6, 10, ?
1
3
12
15
28
68
71
78
83
120
171
211
244
282
616
720
961
2114
2520
4096
Correct!
Incorrect
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95% within 2 standard deviations
68% within 1 standard deviation
50% within 0 standard deviations?!
A normal random variable is within 1 standard deviation of the mean 68% of the time. A normal random variable is *not* within 0 standard deviations of the mean 50% of the time; it's within 0 standard deviations of the mean 0% of the time.
A number that is a perfect square of a perfect square of a perfect cube could be 1.
Maybe use least common multiple, not denominator. As it is, this sounds like it should be 1; 1 is the smallest number dividing 1 through 10.
This was a lot of fun! Some were too tough for me, but I could guess them.