Question

E total number of prime factors of (3x5)12 (2x7)10 (10)25 is

Answer 1

$(3 \times 5)^{12} \times (2 \times 7)^{10} \times (10)^{25} \\ \\ (3 \times 5)^{12} \times (2 \times 7)^{10} \times (2 \times 5)^{25}$

Here, only 4 prime numbers are seen: 2, 3, 5 and 7. These are the prime factors of this number.

∴ No. of prime factors = 4

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