Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Category: 
Correct Answers: 
2
Points: 
9

Calculate the number 718

NUMBERMANIA: Calculate the number 718 using numbers [2, 2, 4, 8, 64, 198] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
0
Points: 
10

Calculate the number 2370

NUMBERMANIA: Calculate the number 2370 using numbers [5, 3, 7, 7, 51, 168] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
0
Points: 
10

Calculate the number 4460

NUMBERMANIA: Calculate the number 4460 using numbers [1, 1, 4, 7, 63, 804] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
0
Points: 
10
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