10. Is 567927 UIVISIUIU U
11. Find the H.C.F. and L.C.M. of 20 and 21.
12. Find H.C.F. by Division Method and L.C.M. by using
Product of Numbers
L.C.M.
H.C.F.
of 1425 and 1805.
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Answer:
10) yes 567926 is divisible by 2, 3
11) hcf of 20 and 21 = 1
lcm of 20 and 21 = 2×2×5×3×7 = 420
12) Hcf of 1425 and 1805
3 | 1425. 5 | 1805
5 | 475. 19 | 361
5 | 95 | 19
| 19
Hcf = 5 × 19 = 95
Lcm = 3×5×5×19×19 = 27075
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