3x3x7x7
The prime factors are: 3 x 3 x 7 x 7
32x72
32 x 72 3 x 3 x 7 x 7 = 441. 3 x 3 = 32. 7 x 7 = 72. 32 x 72 = 441. Or you could just google "441 prime factor" and get the same answer.
Prime Factors of 189 & 441: 1, 3, 7 189 = 3 * 3 * 3 * 7 441 = 3 * 3 * 7 * 7
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