1, 3, 7 and 21
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1 and 3 are the only positive whole numbers that can do all of that.
1, 3, 7 and 21. Four numbers.
1, 3, 7, 21.
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
They are: 3 and 7
1 and 3 are the only positive whole numbers that can do all of that.
1, 3, 7 and 21. Four numbers.
1 ,3 ,7 ,21
1, 3, 7, 21.
1, 3, 7, 21.
21
The numbers that go into 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84
1, 3, 7, 21.
21
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
They are: 3 and 7
The only common factor of all three numbers is 3. (The numbers 21 and 63 share all of the factors of 21 : 1, 3, 7, and 21.)