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Test1234567890



I have a life, says 3301.
0 shall be my off switch
1 shall be my on switch
Don't make me use it.
Wait… I just did >.>

Hello, I currently have a lot of time on my hands, hoping to help out. :P

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EzEdit

Problem 1Edit

The following sequence: 1, 2, 3, 4, 5... follows the 'rule' of: Increasing by 1

What is the 'rule' to the following sequence: 21, 30, 41, 50, 99, 101, 102, 150, 210, 210.5

MediumEdit

Problem 2Edit

If we list the first 4 primes we get: 1, 3, 5, 7

Following the list, what would be the 42nd prime?

Hard!Edit

Problem 3Edit

By listing all the natural numbers below 10 that are multiples of 3, 5 or 7,
we get 3, 5, 6, 7 and 9. The sum of these multiples is 30.

Find the sum of all the multiples of 3, 5 and 7 below 25000.

Problem 4Edit

The smallest number that can be devided by 1, 2, 3 and 4 without decimals is 12.

What is the smallest positive integer that is divisible by all numbers from 1 to 22 without a remainder?

Solvers WallEdit

Solved any problems?
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