Question

Which number has only two factors: 21, 23, 25, 27?

Answer 1

23=23 AND 1

HOPE IT HELPS

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Answer 2

$\huge \text{Hey mate!!}$

⭐⭐Your answer is 23 because 21 has 1,3,7 and 21 as its factor, ⭐⭐

✔25 has 1,5 and 25 as its factor, ⭐⭐

✔27 has 1,3,9 and 27 as its factor, ⭐⭐

✔But 23 has only 1 and 23 as its factor. ⭐⭐

✔So, the correct answer is 23.⭐⭐

Hope it will help you❤❤