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There is no number that goes into both. must be a trick question

this is another person not the same one :)

the number that goes into 12 and 21 is 3 which is a 5th grade problem

who ever said theres no number that goes into 12 and 21 is WRONG!

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Wiki User

13y ago

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Fu

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Anonymous

4y ago
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Anonymous

4y ago
somebody hang hwer

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Q: What number goes into 12 and 21?
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