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How many prime factors does have in all, counting repeats?

Class 7Prime Factors in Exponent FormNumber System
  • A7
  • B10
  • C3
  • D8

Step-by-Step Solution

2 appears 4 times, 3 appears 2 times and 5 once: 4 + 2 + 1 = 7 prime factors. (3 counts only the different primes; 8 multiplies the exponents.)
Answer: A) 7

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