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3
The number 3
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28 goes into 7 and 2, while 30 goes into 15 and 2.
6
... 3.
ninety 90 x 0.3 = 27
It goes: 810/27 = 30 times
The only whole number is 1, because 27 is a prime number.
The HCF of 27 and 80 is 1
1, 3, 9, 27.
The number is 1.
The number 1.