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1. The H.C.F of 4 × 27 × 3125, 8 × 9 × 25 × 7 and 16 × 81 × 5 × 11 × 49 is = ?
8 × 9 × 25 × 7 = 23 × 32 × 52 × 7
16 × 81 × 5 × 11 × 49 = 24 × 34 × 5 × 11 × 72
∴ H.C.F = 22 × 32 × 5 = 180
Solution:
4 × 27 × 3125 = 22 × 33 × 558 × 9 × 25 × 7 = 23 × 32 × 52 × 7
16 × 81 × 5 × 11 × 49 = 24 × 34 × 5 × 11 × 72
∴ H.C.F = 22 × 32 × 5 = 180