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The number 1422 - 1 is divisible by :
Answer & Solution
Correct Answer:
Option
D
= 1422 - 1
= (142 - 1) (142 + 1) [a2 - b2 = (a - b) (a + b)]
= 141 × 143
= 141 × 11 × 13
= (142 - 1) (142 + 1) [a2 - b2 = (a - b) (a + b)]
= 141 × 143
= 141 × 11 × 13
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