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avril has 4 number 1 hits including sk8erboi, girlfriend, complicated and under my skin
56 number 1 hits
He had 5 number 1 hits.
fifty
7
avril has 4 number 1 hits including sk8erboi, girlfriend, complicated and under my skin
tuti
1
42
One
An infinite number.
An infinite number of curved sides
Iron has 26 electrons; the number of neutrons is different for each isotope (number of neutrons = mass number - 26).
6
More than two.
6
56 number 1 hits