Math, asked by ronodhirhajong, 1 year ago

11,21,31,41 which one is not a prime number?

Answers

Answered by anika1076

3

Answer:

21

Step-by-step explanation:

here 11= 1×11

31= 1×31

. 41= 1×41

but 21= 1×21 = 1×3×7

so 21 is not a prime number.

Answered by anika107695

2

Answer:

21 is not a prime number

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