Math

QuestionDetermine if the number 57 is prime or composite.

Studdy Solution

STEP 1

Assumptions1. The number we are examining is57. A prime number is a number that has exactly two distinct positive divisors1 and itself.
3. A composite number is a positive integer that has at least one positive divisor other than one or itself.

STEP 2

To identify whether a number is prime or composite, we need to check its divisors. We start by checking if the number is divisible by2.
57mod257 \, mod \,2

STEP 3

Calculate the modulus.
57mod2=157 \, mod \,2 =1Since the remainder is not zero,57 is not divisible by2.

STEP 4

Next, we check if the number is divisible by3.
57mod357 \, mod \,3

STEP 5

Calculate the modulus.
57mod3=057 \, mod \,3 =0Since the remainder is zero,57 is divisible by3.

STEP 6

Since57 has more than two distinct positive divisors (1,3,19, and57), it is not a prime number. Therefore,57 is a composite number.
The number57 is a composite number.

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