I was helping my kid out they had a question close to this and I wonder what does go into 10 and 21
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10 goes into 210 21 times
Nothing.. Because 21 is a Prime number
There is no number that goes into both. must be a trick questionthis is another person not the same one :)the number that goes into 12 and 21 is 3 which is a 5th grade problemwho ever said theres no number that goes into 12 and 21 is WRONG!
1 and 5 both do.
The number 7 and 21 have a common factor of 7. This means that 7 is a divisor of both 7 and 21. In mathematical terms, 7 is a factor of both numbers, as it divides each of them without leaving a remainder.