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3
2019 C/CS3: Two Numbers Multiply to a Third
2019 C/CS3: Two Numbers Multiply to a Third
Source:
January 27, 2019
2019
combinatorics
Problem Statement
How many ordered triples
(
a
,
b
,
c
)
(a,b,c)
(
a
,
b
,
c
)
of integers with
1
≤
a
≤
b
≤
c
≤
60
1\le a\le b\le c\le 60
1
≤
a
≤
b
≤
c
≤
60
satisfy
a
⋅
b
=
c
a\cdot b=c
a
⋅
b
=
c
?
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