4 years ago

why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime

1 answer:

5 0

Step-by-step explanation:

because 7 is the highest prime number that when squared is less than 100, 11 yhe next prime number when squared is 121. As such all non-prime numbers less than 100 will be a would have prime factors of either 2, 3, 5 & 7

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why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime​

why is there no need to go further than the multiples of 7 when checking if a number less than 100 is prime