Question:
Write the sum of the exponents of prime factors in the prime factorization of 98.
Solution:
Using the factor tree for prime factorization, we have:
Therefore,
$98=2 \times 7 \times 7$
$98=2 \times 7^{2}$
The exponents of 2 and 7 are 1 and 2 respectively.
Hence the sum of the exponents is 3
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