patterns

lawebb

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Aug 23, 2011
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120, 105, 90, 80, 75, 60, 45 which number does not belong How would i found out which number does not belong?
 
120, 105, 90, 80, 75, 60, 45 which number does not belong How would i found out which number does not belong?

One of the method of solutions would be to factorize the numbers.
 
120, 105, 90, 80, 75, 60, 45 which number does not belong How would i found out which number does not belong?
What happens if we leave out 80?
Can you explain the logic of the pattern \(\displaystyle 120,~105,~90,~75,~60,\cdots\)
 
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