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Byju's Answer
Standard IV
Mathematics
HCF
Find the HCF ...
Question
Find the HCF of the numbers in each of the following, using the prime factorization method:
1197, 5320, 4389
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Solution
The given numbers are 1197, 5320 and 4389.
We have:
3
1197
3
399
7
133
19
19
1
2
5320
2
2660
2
1330
5
665
7
133
19
19
1
3
4389
7
1463
19
209
11
11
1
Now, 1197 = 3 × 3× 7× 19 = 3
2
× 7 × 19
5320 = 2 × 2 × 2× 5 × 7 × 19 = 2
3
× 5 × 7 × 19
4389 = 3 ×7 × 19 × 11
∴ Required HCF = 19 × 7 = 133
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