It is in the tens position, so it is 60.
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It can be one of six numbers: 724, 643, 562, 427, 346, 265
No.
The last digit is 2.So we know it's an even number.So we know it's divisible by 2.So we know it's not a prime number.Therefore it is composite.
562/7 => 80 with r=2 80/7 => 11 with r=3 11/7 => 1 with r=4... Final value along with the remainders give you the result 1432..
562