HCF of 910, 325, 615, 125 is:
HCF of 910, 325, 615, 125 is:
A5
B1150
C350
D150
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correct answer is: 5
Explanation: The HCF of 910, 325, 615, and 125 is determined by identifying the highest common prime factor among all numbers. The prime factorizations are:
- 910: 2 × 5 × 7 × 13
- 325: 5² × 13
- 615: 3 × 5 × 41
- 125: 5³ The only common prime factor is 5. Therefore, the HCF is 5. However, since 5 is not listed among the provided options (50, 1150, 350, 150), there might be an error in the question or the options provided.
- OPTION a: 50
- 50 is not a factor of 325 (325 ÷ 50 = 6.5, not an integer).- OPTION b: 1150
- 1150 is greater than some of the numbers, so it cannot be their HCF.- OPTION c: 350
- 350 is not a factor of 325 (325 ÷ 350 = 0.928, not an integer).- OPTION d: 150
- 150 is not a factor of 325 (325 ÷ 150 ≈ 2.166, not an integer).
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