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14 Divisors

What is the smallest number with exactly 14 divisors?

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Summing Consecutive Numbers

Many numbers can be expressed as the sum of two or more consecutive integers. For example, 15=7+8 and 10=1+2+3+4. Can you say which numbers can be expressed in this way?

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Do you know a quick way to check if a number is a multiple of two? How about three, four or six?

Weekly Problem 37 - 2008

Stage: 3 Challenge Level: Challenge Level:1

A recipe for eight flapjacks needs 2oz butter, 3oz sugar and 4oz rolled oats.
How many flapjacks can I make if I have 14oz butter, 15oz sugar and 16oz rolled oats?

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.



This problem is taken from the UKMT Mathematical Challenges.

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