EXERCISE 3.4
ind the H.C.F. of the numbers in each of the following using prime factorisation method 170,239
1. 170, 238
2. 272, 425
3. 18, 24, 32
4. 91, 175, 49
5. 924, 1463, 1925
6. 150, 140, 210
7. 396, 720, 1080
8. 144, 252, 630
9. 1440, 1800, 1920
10. 72, 108, 180.
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Step-by-step explanation:
7. 396 - 2×2×3×3×11
720 - 2×2×2×2×3×3×5
1080 - 2×2×2×3×3×3×5
8. 144 - 2×2×2×2×3×3
252 - 2×2×3×3×7
630 - 2×3×3×5×7
9. 1440 - 2×2×2×2×2×3×3×5
1800 - 2×2×2×3×3×5×5
1920 - 2×2×2×2×2×2×2×3×5
10. 72 - 2×2×2×3×3
108 - 2×2×3×3×3
180 - 2×2×3×3×5
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