How to find Prime Numbers between 1 and 100

Tuesday, January 10, 2017


Easy step by step directions for finding all of the prime numbers between 1 and 100.
Prime numbers are only divisible by 1 and itself.

Step 1. The number 1 is a unique case. It is neither prime or composite.

Step 2. Write out all numbers between 1 and 100.

Step 3. Circle 2,3,5 and 7 and then mark out multiples of 2,3,5, and 7.

Step 4. All numbers circles or not marked out is considered prime.

MooMooMath and Science

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