Question
Using prime factorization, find the HCF and LCM of:
23, 31
23, 31
✓
Answer
23 and 31 are prime numbers, so
HCF (23, 31) = 1
LCM (23, 31) = 23 × 31 = 713
HCF × LCM = 1 × 713
23 × 31 = 713
⇒ HCF × LCM = product of given numbers
Hence verified.
HCF (23, 31) = 1
LCM (23, 31) = 23 × 31 = 713
HCF × LCM = 1 × 713
23 × 31 = 713
⇒ HCF × LCM = product of given numbers
Hence verified.
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