Question

21 has only 2 factors? Yes/ No

Answer 1

Answer:

No.

Step-by-step explanation:

Factors of 21: 1, 3, 7, 21 (four factors).

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Answer 2

Answer:

Step-by-step explanation:

Factor of a number is the number by which the number can be divided

21 can be divided by 1.3,7 and 21

thus factors of 21 are :1,3,7,21

But

The prime factors  are 3 and 7 ( two only)