Which of the following is a prime number A 19 B 20 C 21 D 22
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Answer:
19 is a prime number..........
Answered by
1
Step-by-step explanation:
A) 19 = 1×19
B) 20 = 2×2×5
C) 21 = 3×7
D) 22 = 2×11
SO THE ANSWER IS 19
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