how many prime numbers upto 100 have their unit digit as 3?
Answers
Answered by
1
Answer:
the answer is 70 prime numbers
Answered by
0
Answer:
7
Step-by-step explanation:
numbers up to 100 with unit digit as 3 are 3,13,23,33,43,53,63,73,83 and 93.
here 33,63 and 93 are divisible by 3. hence they are composite numbers.
∴ the no. of prime numbers up to 100 with their unit digit as 3 = 7 ( count the numbers mentioned first excluding 33,63 and 93)
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