Check 20,556 of the following numbers are divisible by 4 and 8.
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20,556 (twenty thousand five hundred fifty-six) is an even five-digits composite number following 20555 and preceding 20557. In scientific notation, it is written as 2.0556 × 104. The sum of its digits is 18. It has a total of 5 prime factors and 18 positive divisors. There are 6,840 positive integers (up to 20556) that are relatively prime to 20556.
572 is divisible by 4 because the number formed by the last two digits (72) is divisible by 4. Any given number is divisible by 8 if the number formed by its last three digits is divisible by 8.
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